Logo of WG Construction

WG Construction

  • 133 Main St Unit 2, Epping, NH 03042
  • Commercial Roofing
  • Free Estimates
  • Locally Owned & Operated
  • Warranties Offered
  • Metal Roof
Hours
Mon7:30 AM - 9:00 PM
Tue7:30 AM - 9:00 PM
Wed7:30 AM - 9:00 PM
Thu7:30 AM - 9:00 PM
Fri7:30 AM - 9:00 PM
Sat7:30 AM - 9:00 PM
Sun7:30 AM - 9:00 PM

About the Business

No description yet.

What people say about “WG Construction”?

There are not enough reviews yet to form a clear opinion about WG Construction

Recommended Reviews

Overall Company Rating
Excellent 5.0
Out of 48 reviews
5 stars
4 stars
3 stars
2 stars
1 stars
Show first:
Chad Lane
Jul 5, 2025

Walter Guaman & his WG Construction team did a phenomenal job replacing my siding and all my window & roof trim. Exceptional professionalism in all aspects - knowledgeable, attention to detail and quality, prompt, great communication, follow up, positive attitude, above and beyond - from start to finish. After struggling to find someone reliable, I found WG Construction through the Certainteed website. Walter recommended Certainteed Monogram Vinyl siding & PVC to replace my wood trim and as you can see from the before and after photos, I now have a beautiful & maintenance free cottage with perfectly duplicated vintage trim and improved insulation, which you cannot see, but has improved my energy efficiency. I couldn’t be more pleased and have received many compliments on how nice my cottage now looks. I highly recommend Walter Guaman & his WG Construction team.

Jamaal Rowlett
May 23, 2025

Walter was very professional, helpful and easy to work with. He went beyond what I expected to help with our insurance claim for our roof. His team of workers were efficient and friendly which showed in the efforts they put in to finish the roof in a timely manner and keeping our yard clean. I would recommend WG Construction to anyone seeking a roof replacement.

Gregory
May 16, 2025

WG did a great job installing an upgraded ridge vent to my property. They were able to schedule me very quickly and completed the entire project in 1 day leaving no mess behind. Professional crew. Highly recommend

Eric Arroyo
May 9, 2025

I needed a couple roof vents put in for bathroom fans. I contacted four roofing companies and Walter was by far the best choice. He came by to look at the project and was tremendously kind, professional, and confident in his knowledge of what needed to be done.

He explained the process, showed me pictures of what the new vents would look like, explained that he would be laying down all new ice/water barrier around the vent to ensure that it wouldn't leak (instead of just using silicone), and quoted a great price. He also gave me a heads up that they may not be able to save the old shingles and that there would be a color difference since the existing shingles were close to 20 years old and faded.

Walter was able to start the job within a week. When he came to do the work, he took a look at my existing roof ventilation in the attic (ridge vent and soffits) to make sure it was performing well and gave me some tips for better airflow.

After marking the new vent locations with a nail through the roof (from the attic), his team made quick work out of the project and picked up all the debris. They were also able to save the existing shingles so there's no color difference on the roof.

Once the project was done, Walter sent over picture of the process and offered to come by if I had any questions.

It's now been a few days and we've had a few heavy downpours with no water getting into the attic so all seems good.

Overall, it was an excellent experience and Walter will be my first call if I ever need roofing work done in the future.

Flowering Plum B
May 3, 2025

WG Construction responded to my call to have a repair made quickly. The call receptionist, Maria was pleasant. Walter came out to my home to see the work and to price. Walter and I discussed the work and I asked for extra nailing and an inspection of the other 3 sides of my home if additional nailing was required. Walter appreciated the photos I sent to the website for his review before he arrived. The work order and the price was sent via email. I was able to approve the work to be done and to receive all related paperwork at the website to printout which I found easy and convenient. The work required ladders. I would recommend WG Construction for homeowners who no longer can do ladder work without risk of falling and who live in a HOA community where the work needs to be addressed sooner than later to avoid conflict and fines. I did not shop around other than first calling a former contractor who was not available. The cost $450.00 to have two men inspect, repair and reenforce where needed at the roofline of my home and done within 48 hours of meeting Walter gave me peace of mind and I know the work was done correctly as a neighbor watched the workers and told me they did everything that Walter and I discussed. Thank you, WG Construction!

Daniel Grayson
Apr 26, 2025

Walter was professional, fair, kind, and courteous. His crew worked like no crew I’ve ever witnessed… professionally, skillfully and exceptionally quick. The entire experience was top notch and I would highly recommend WG Construction.

Doug Baresich
Apr 7, 2025

Walter and his crew were very friendly and professional. Cost of roof leak repair was reasonable and work was done quickly and completely resolved our problem. A++++

Sandra Connors
Mar 14, 2025

Overall I am very satisfied with the work performed. I understand with snow on the ground it was difficult to clean up work debris; nails, broken saw blades & wood scrap, etc. There are a few trim boards that weren't replaced but hopefully can be done when you come back to complete the deck. Thank you!

Braden
Mar 13, 2025

This was perhaps the best experience I've ever had with a contractor. We lost some shingles in a storm and I called them up and they were out here and fixed our roof within 24 hours. Prices were very reasonable and they are super professional. We will be using them for all our roofing/siding needs going forward. If you need some roof or siding work I'd highly recommend them - you won't be disappointed.

Dr. Headcase
Mar 12, 2025

Very pleased with the stopgap work WG Construction did after big winds displaced the aged skylight atop our abode in downtown Portsmouth. Walter and Reuben were both personable and informative. We will look to them for whatever follow up we decide is best.

gary macleay
Mar 4, 2025

Walter and his professional team were very courteous and did a wonderful job for us. In addition to the great job completed right on time, Walter was also an advocate for us with our insurance company, which was greatly appreciated!

Michael Locke
Nov 30, 2024

The team at WG Construction is top notch! We just had our house roof done with them, after getting our garage roof done the year before with them. They do amazing work at fair prices. The entire experience from design, to quote, to the actual job is seamless. We cannot recommend them enough, and we will surely be returning customers on future projects!

Hank Eppich
Oct 28, 2024

I can offer high marks for WG! Great customer service starting with my initial call, and quick quote for repair work on my roof.

They scheduled me right away, and then the workmanship was excellent as well.

Friendly too!

I have a great experience and would recommend WG without hesitation.

Gypsy Rose
Oct 11, 2024

The Company, WG Construction was very polite and very hard working. They did a fabulous job with our one piece gutter. You don't know how nice it is unless you had gutters that were not installed properly and in more than one piece as was the case years ago. WG Construction, put in a proper pitch and increased the size a bit so now it works properly and will not ruin our decks or cause holes in the ground where the water runs through the cracks! We hired this company due to their BBB rating and we are glad that we did!

Lisa Britt
Oct 11, 2024

Due to issues with a previous contractor that neglected to install proper ventilation, we found that we had mold growing in the attic.
I called WG Construction and they were here that same day to evaluate. The cost was more than reasonable and gable vents were installed within a couple of days. The workers were friendly and professional. They wore proper PPE and the area was left clean.
I highly recommend WG Construction. They took the worry out of a stressful situation and I will not hesitate to call on them if I am in need of more work.

William Davies
Oct 8, 2024

I have been a homeowner for several decades and working with WG Construction was my best experience with a contractor. I needed the siding on a dormer replaced after having a new roof installed. WG Construction (Walter) was very responsive and quickly provided the multiple quotes I had asked for. The job was scheduled within a couple of weeks. The damaged siding was stripped, the wall was covered and the seams were taped before the new siding was installed. The workers did an excellent job installing the new siding and the dormer looks great. Excellent company to work with.

Mark Natola
Aug 29, 2024

WG Construction recently performed roof repairs on our home. Walter was professional as was his crew. Walter provided us with a written quote that included a copy of his insurance. The work was performed well, the men were in and out in several hours, and there was no litter when they were done. I will certainly use WGC again in the future!

Rick MacGuire
Aug 8, 2024

We hired WG Construction to locate where rain water was getting into our garage. Several other contractors were never successful. Walter determined the likely source was around an improperly sealed window. He removed enough clapboard siding to see the extent of the damage then removed/replaced any rotted wood sheathing, insulation, and 2x6 as needed. After wrapping the area with ice and water shield as well as sealing any area water could get in he replaced the exterior with new siding. So far there has been no sign of any more water intrusion.
Walter and his crew were all professional, courteous, and kept us informed throughout the process. He is extremely customer service oriented and didn’t stop until we were 100% satisfied. I highly recommend WG Construction for all your roofing and siding projects.

Teresa Rusnock
Aug 8, 2024

Walter at WG Construction was responsive, provided an estimate and had the crew start when promised. They did a fantastic job, cleaned up daily and finished the job (gutters/fascia/soffits) earlier than expected (staying daily until it was almost dark). Very impressed with the work and professionalism. Price was as estimated without any hidden costs or add-ons.

Would highly recommend WG Construction for all your roofing and related needs.

brian glo
Jul 30, 2024

We met with Walter from WG Construction when we found out that we had significant wet rot under our deck to the structures of the house. Walter took our call, and was there the next day due to the priority. Walter and his crew came to our home and improvised a bracing system to move the existing deck off the house to make extensive repairs. They arrived as promised each day and the crew tirelessly worked during incredible summer heat and torrential rains. Walter and his proficient crew solved our issues, and now we have peace of mind that our house back to normal. I would highly recommend WG construction. Thank you Walter and WG Construction for amazing quality work!

Sonshine Morning
Jul 29, 2024

I was very blessed to have WG Construction repair my leaking chimney. He corrected and completely repaired the rot and further damage done by the previous contractor who did not remove the old flashing and lead but instead put flashing and lead over it. WG Construction was professional and courteous. His crew was polite and considerate of my property and throughly cleaned the roof and grounds of debris. The repair was removal of all materials on and around the chimney. Remove rotten wood and replace with new wood. Placed ice and water shield on roof and wrapped around the base of the chimney. Placed new flashing and lead around chimney, and new shingles on the roof. I highly recommend this company. It's truly refreshing to have a contractor you can trust to get the job done correctly.

Cory Purchas
Jul 25, 2024

Wow. What an amazing team. They showed up when they said they would, the communication was great and they worked their butts off to get our job done. They stayed until well after 6 both days.I will be recommending them to everyone I know.

James Morgan
Jul 22, 2024

Got multiple quotes from at least 4 different companies before I decided to go with Walter and WG Construction. His knowledgable and friendly demeanor coupled with his flexibility is ultimately what helped to seal the deal (and great pricing). Walter and his team were able to accomodate any requests we made such as putting on new exterior lights instead of the old ones, adding ledger boards for a deck roof, etc. His team are absolute workhorses! 12hr days for 6 days a week and the entire project was done in ~3 weeks and the final product looks amazing. I highly recommend using WG construction for siding, windows, framing, etc as they have been great and Walter is highly knowledgable in what he is doing. 10/10 would use them again.

Samantha Loh
Jul 11, 2024

You are in incredible hands with Walter and his team. I have never been so impressed with a company's knowledge, skill, communication and commitment to getting the project done correctly. From the very beginning, Walter stood out from other contractors. He was the only person during our initial consultations who climbed up on our roof to try and assess where our leak/water damage was coming from, and to us that showed his genuine dedication to helping his customers.

We had an extensive project with new siding, window replacements, roof repair, gutters and a new front door. A project of that size and length could quickly become overwhelming, but Walter was in communication with us constantly and was at the job site himself every single day. Any issues that arose during construction (and we had many), Walter made us feel at ease and solved each problem quickly.

I can't leave a review without highlighting the team at WG as well. They are absolutely incredible. I have never seen such hard work, pride and dedication from anyone. Every day that went by, we found ourselves in awe of their work ethic, kindness and skill.

We are beyond thrilled with how beautiful our home turned out and will be forever grateful for every single person from WG who helped make it that way. It doesn't get better than WG!

Annette Sandoval
Jun 27, 2024

WG construction was so easy to work with. Walter and his team were very prompt with responding to any question I had and did an amazing job with my gutters. They came in the morning and finished the job in one day without leaving anything in the yard or hurting my flower bed. I would highly recommend them for replacing gutters!

thomas blackmer
May 14, 2024

The folks at WG Construction were wonderful to work with. The strong spring winds blew part of my roof off and WG Construction was able to come quickly and repair it before any water damage could happen. The crew were very friendly, the price was great, and the work was top notch. I cannot speak highly enough about this company.

Alex H
Apr 25, 2024

Walter and his team were amazing. The work was completed on time and with professionalism and tidiness, a real breath of fresh air during this time in New England when it’s never the case. From getting an estimate (below all others) to the post work presentation (complete with drone photos), the experience felt like I’d been transported to another realm where the customer mattered and the craftsmen took pride in their work. Walter’s family were among the delightful workers who spent two 12 hour days (!) getting the job done and perhaps that contributed to this rare experience. I’ve gotten several compliments from neighbors on our new roof and, of course, I’ve shared the company information. I guess they do outdoor carpentry too?! I’ll be sure to call Walter when that day comes.

pat bradbury
Apr 23, 2024

Very pleased with project from start to finish. They are knowledgeable , professional and take pride in their workmanship. Concerns and questions are expertly addressed all through the process with excellent communication. Very nice family and great family business. Highly recommended. Thank you Walter and crew!
- Mike

Cilla Clements
Apr 2, 2024

WG Construction LLC proved to be exceptionally good at communicating with us, their customer. Walter provided a detailed estimate with insurance cert. attached w/in 24 hours of first seeing our roof in need of replacement. A team of 10 men stripped our old roof, made several needed board and rafter replacements and did preventative procedures to avoid potential leaks. They completed the job in 2 days! Professional appearance throughout entire crew, polite, hardworking, knowledgeable, experienced, and fairly priced describes this exceptional business. We highly recommend WG Construction LLC!

Heidi Mikell
Aug 14, 2023

I am very happy with our new roof. Walter and crew were very professional and completed the job fast. I would recommend this company!

Evan Drew
Jul 9, 2023

Walter and his team did a great job on vinyl siding and exterior door installation for our 70 year old home. We choose him due to both prove and his attention to details on our needs. He walked us through his process of items both big and small and delivered on all of them. Everyone in the neighborhood was impressed. Will certainly go to them first for our next home needs.

Dee
May 17, 2023

Walter and his team replaced all the rotten fascia boards around my house. They are hard workers and efficient. Walter kept me updated and made the entire process seamless. I have used him before and will call him every time I need help. Great work at a great price. Really happy.

James Kottaridis
May 12, 2023

Walter is a top notch guy. He got back to me quickly, did a patch job on the fly, and did a full roof replacement for me. The work was exceptional - the cleanup was pristine, and the invoice/record of the job was detailed. Highly recommend

Diane Lapite
May 2, 2023

I had a branch go through my garage roof. I sent them a message and where here within 2 hours. They asset the damage, gave me a quote which I accepted. Walter had the job done within 2 hours. He did an amazing job. Can’t even tell where he fixed my roof.

Richard Spence
Apr 25, 2023

WG Construction replaced half our roof in preparation for the installation of solar panels. The owner, Walter, came in person to make the assessment, provided the bid, and worked with his crew during the roof installation. Wa;ter always was available to address concerns (none) and to answer questions. The bid happened to be the lowest of the three we received, but the quality of the roofing materials used in the installation was the of the highest rating. The crew arrived early in the morning and worked straight through to the evening--working hard and thoroughly. The cleanup was very thorough and meticulous.
We highly recommended the family owned, WG Construction, for your home projects.

John Kravic
Apr 8, 2023

My wife and I purchased a home in an awesome location that’s a bit of a fixer-upper. A new roof was one of many projects on the list. We compiled multiple quotes for this before diving in.

Walter was the fastest to respond, gave a great price and was able to get the job quickly. His crew was courteous and professional. The entire project was done in a day. I cannot recommend WG construction enough and will be using them again in the future for other exterior needs.

Dee Bagdonas
Jan 14, 2023

Walter and team went above and beyond to repair my damaged roof. I highly recommend them. Professional and courteous, and a pleasure to work with. Very responsive!

Edward Lettich
Jan 5, 2023

Walter came and made a free assessment of the damage i had. The day after a holiday he was here and completed the repairs without issue. When it comes time to redo my roof or fix and future issues i know I'll be calling him again

Gail Bourque
Dec 14, 2022

WG Construction showed up for an estimate in a timely manner. I was impressed with the information shared about my roof, through the many photos taken. With this process I was able too see exactly what Walter was referring too as he explained in detail the issues with my roof which was also an education for me. I was grateful for his time and expertise through the entire process. His crew was fast, efficient, and very skilled. They all showed up on the scheduled time and were done well before the expected timeline. Their process included intricate means of cleanup by way of drop clothes to catch all debris as well as a thorough check and leaf blowing inspection to insure anything used in the project was picked up. This is one company you can rely on to go the extra mile with an assurance of a quality product and workmanship unique in the industry. I would recommend WG Construction for any roofing project and as their work ethic impressed us so much, we would definitely call on them for construction projects in the future.

Mike D
Dec 2, 2022

Really like this company. It’s a family owned local business, they are easy to deal with and very nice. Also…they don’t try to upswell you on things you don’t need.
I need an attic fan installed (which requires cutting a hole into our roof) because our attic gets much too hot in the summer months, and the roof ridge vents just don’t let enough heat escape. I got estimates from three different companies. The other two companies were significantly more expensive and guys who came out were more slick salesmen than roofers. And I got the feeling they were selling me on whatever they could. In fact after one of them left, my wife said “don’t use that company, I don’t trust that guy.”
Anyway, Walter from WG construction was great. He was very knowledgeable, very quick in assessing what needed to be done, and provided a fair estimate before he left. He even explained the install process and showed me the materials he would use.
I’ll provide an update after the work is done by Walter and his team, but so far I feel very comfortable to give them a five star rating based on my experience.

Howard McDowell
Nov 13, 2022

Walter and his crew were quick and efficient. Everyone on his crew was a real gentleman.
The job was completed with very little disturbance to our family. It is excellent work. The price was reasonable and fair. We heartily recommend this young man and his professional staff.
~The McDowell Family
New Boston, New Hampshire

Rebecca Sbacchi
Nov 7, 2022

We needed our fascia boards replaced and a new roof installed. Walter was great to work with. He is professional, friendly and responsive. After giving a free inspection of our roof, the estimate happened quickly and was very reasonable. We were highly impressed with how fast and efficient his crew worked and the high quality of work. Our new roof and fascia boards look amazing. We are so happy to have found Walter and will be recommending WG Construction LLC to our family and friends.

Jay Perkins
Oct 25, 2022

WG Construction went above and beyond installing a new roof on my home. Walter was great but more important he did everything he said he was going to do and that speaks volumes about his company. The workmanship and quality of materials was grade A and I would recommend him to my friends and family. Thank you and your amazing crew. Jay

Erica Marie
Oct 14, 2022

Excellent customer service, Walter was very professional, he showed up and got the job done for the best price around. I'll definitely be using them for any future projects and/or repairs.

Sabrina Dix
Sep 2, 2022

WG Construction is very professional, and took the time to listen, understand and execute my needs. They came, inspected my roof and offered options that not only fit my budget, but installation options that can help lower my heating costs.

Kristin DD
Aug 3, 2022

Walter was very quick to respond, informative, friendly, and price was best around. His crew was fast, efficient, and did an amazing job. Will definitely be reaching out regarding more projects and highly recommend. Thank you all so much!!

Don Dougherty
Jul 11, 2022

I would reiterate everything John Dacey had to say. Great family business work ethic. Walter better than his word. Did everything he said he would and more. Best quote of any that I received. Came ahead of schedule to accommodate me and was done in no time. Did an excellent job. I fully researched this project and have to say he used specified or better materials in every instance, and went above and beyond requirements on the valleys, ridge, edges, flashing, lower pitched roof sections, and vent pipes. Replaced plywood, siding and trim where needed. Really top-notch work, excellent guaranteee, very efficient, and excellent on the clean-up. With these guys, you get more than what you pay for! Highly recommend.

john dacey
Dec 15, 2021

I saw Walter and his crew tearing off my neighbors roof with such incredible speed and efficiency! It was impressive.
Needing a new 63 sq roof on an prominent and historical 1840 former mansion, I went to talk to Walter - the owner. I found him to be a very sharp and friendly guy. On his 12:00 lunch break he took a look at my property.

We walked slowly around the home and talked about how to address some things and improve others; polish up the old girl. At this point I wanted him to do the job. He said he’d have a price for me the next day (Sunday!). He did, and it was a good price. Also, my neighbors new roof looked great! He emailed me a clear and detailed contract, told me he’d start in 2 weeks, and finish in 3 - 4 days.

He did everything he said he would!
They all worked hard, and efficiently - with an amazing focus. Their work was pure high quality craftsmanship. The new roof, the crisp white aluminum trim the full length of the carriage house, all four chimneys new lead flashing, and even a very long new gutter. Everything done to absolute perfection!

They finished at 4:00 today and I’m still in awe of what they did for this grand dame.

The only thing I’m sad about is that they’re done. There a family business and I’ve become very fond of this family!
But I’m gonna see them again when they do mom‘s roof.

To Walter and family,
Many thanks for your fine work!
John D.

Call us and get a quote right now Show phone number
137 locals recently requested a quote
  • 133 Main St Unit 2, Epping, NH 03042
  • Commercial Roofing
  • Free Estimates
  • Locally Owned & Operated
  • Warranties Offered
  • Metal Roof
Hours
Mon7:30 AM - 9:00 PM
Tue7:30 AM - 9:00 PM
Wed7:30 AM - 9:00 PM
Thu7:30 AM - 9:00 PM
Fri7:30 AM - 9:00 PM
Sat7:30 AM - 9:00 PM
Sun7:30 AM - 9:00 PM

Companies Similar in Profile

Banner of Derry Roofing
Derry Roofing Derry, New Hampshire
Banner of Ridge Runner Construction, LLC
Ridge Runner Construction, LLC Derry, New Hampshire
Excellent 5.0 (9 reviews)
Banner of Lionshield Roofing Company
Lionshield Roofing Company Auburn, New Hampshire
Excellent 5.0 (34 reviews)
Banner of Southers Construction
Southers Construction Epping, New Hampshire
Banner of Schwanz Construction
Schwanz Construction Amherst, New Hampshire
Excellent 4.8 (24 reviews)
Banner of Sully's Construction
Sully's Construction Derry, New Hampshire
Excellent 5.0 (32 reviews)
Banner of Stason Construction LLC
Stason Construction LLC Deerfield, New Hampshire
No rating 0.0 (0 reviews)
Banner of Fox Construction, LLC
Fox Construction, LLC Deerfield, New Hampshire
Good 4.2 (5 reviews)
Other Filters 0