Octagon Construction & Energy

Construction is Our Business. Restoring Lives is Our Mission — Your Trusted Remodeling Contractors in Maine and New Hampshire

Octagon Construction & Energy helps families and businesses rebuild after fire, water, storm, or mold damage. As reliable remodeling contractors in Maine who also serve New Hampshire, we make the claims process easier while restoring properties with care.

Founded two years ago by a leadership team with over two decades of industry experience, Octagon was created to support communities with experienced remodeling contractors in Maine, offering services in New Hampshire too. Beyond disaster reconstruction, we deliver remodeling, renovations, roofing, and energy-smart improvements, with new services coming soon.

If your property needs rebuilding, repairing, or reimagining, our skilled remodeling contractors in Maine who also work across New Hampshire are ready to help.

Let’s Discuss Your Project Today

About Us

At Octagon Construction & Energy, we go beyond building structures. We rebuild confidence and protect what matters most. Families, residential homeowners, and commercial property owners rely on us as trusted remodeling contractors in Maine with service coverage in New Hampshire for lasting restoration and improvements.

When disaster strikes, property owners turn to our dependable remodeling contractors in Maine who also support New Hampshire homeowners for reconstruction that restores strength, safety, and peace of mind. From remodels and renovations to roofing built for local conditions, we deliver lasting results.

Licensed, insured, and accredited by the Better Business Bureau, we offer the confidence you expect from reputable remodeling contractors in Maine with New Hampshire service coverage.

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Our Services

Rebuilding with Quality, Comfort, and Value.

Reconstruction Services

Restore your property with strength and safety after fire, water, storm, or structural damage. Our dedicated remodeling contractors in Maine, serving New Hampshire communities as well, rebuild properties with dependable workmanship.

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Remodeling & Renovations

Transform your space into something extraordinary. From kitchens and bathrooms to living spaces and commercial properties, we create upgrades that improve comfort, style, and long-term value.

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Roofing

Protect your property from the top down. Our reliable roofing repairs and replacements safeguard your investment, prevent costly damage, and boost curb appeal for years to come.

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Insulation & Air Sealing

Save money while staying comfortable. Our insulation and air-sealing team consists of trained remodeling contractors in Maine whose energy-efficiency services also extend into New Hampshire, improving comfort and reducing utility costs.

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Basement Encapsulations

Turn your basement into a healthier, more usable space. We protect foundations, prevent mold from spreading, and create a dry, clean environment for safe living.

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Window & Door Upgrades

Upgrade your home with smarter solutions. Our experienced remodeling contractors in Maine, with service options in New Hampshire, help improve comfort and reduce heating costs.

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Clients' Reviews

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Octagon Construction & Energy

4.9

Based on 15 reviews

review us on

Mary Anne

23:03 26 Oct 25

Octagon Construction completed the work on our water damage a few weeks ago(october2025). They did a terrific job and the work was done in a timely manner . Todd Golden was a very professional project manager and followed up on everything. We are very happy with the results. Highly recommend!

Brenda Lapoint

10:15 16 Oct 25

My finished basement was flooded when my hot water heater leaked. I called Octagon. They came the next day. They removed carpeting portion of dry wall and insulation to prevent mold. The restoration was completed and very well done. I highly recommend Octagon They were efficient with great results.

Alex Larrabee

18:54 26 Sep 25

Working with Octagon was an absolute pleasure! From start to finish, their team demonstrated professionalism, expertise, and a commitment to quality. They completed our home renovation on time and within budget, project management was superior, paying close attention to every detail and request of mine. The crew was courteous, kept the site clean, and communicated clearly throughout the process. Their craftsmanship is top-notch, and the results exceeded our expectations. I highly recommend Octagon for any construction project—big or small!

lisa cube

13:28 09 Sep 25

When I called and a real person answered the phone, I felt relieved immediately. Octagon is a great team of people. Everyone knows what they are doing. The service was well communicated. Price was very reasonable. The job was executed exactly as described and right on time. Highly recommend if you want no nonsense and good work.

Edwina Ducker

14:58 02 Sep 25

When we decided to refurbish a section of our very old house, we knew we were in for some surprises. True to form, the project morphed into a much larger undertaking once the team began work. What truly impressed us was how this company handled every curveball. From the first introductory conversation, their team demonstrated the highest level of professionalism, expertise, and skill. The project manager was excellent, keeping us consistently informed about both the expected—and unexpected—developments. The crew's attention to detail was exceptional, preserving the historic character of the house while seamlessly integrating modern updates. We are so grateful for their patience and guidance throughout this journey, and the end result is a home that is better than we ever could have imagined.
Octagon Construction truly stands out as a company that is trusted, thoughtful, and deeply customer-focused. We wholeheartedly recommend them to anyone seeking a high-quality, professional construction partner.

erik aikins

19:12 08 Aug 25

Kyle H is a total pro, outstanding workmanship. Made a great experience that much better. Thanks again!

R O

20:09 10 Jul 25

Octagon Construction and Energy of Windham, ME is a relatively new company and like many companies will experience ups and downs. We hired them to remedy the leaks on our living room and dining room ceiling as well as to fix the cause of the problem from the outside. Todd was our Project Manager and was easy to reach and worked hard with the insurance company’s adjuster. He coordinated the crews that did our work. The primary workers were all subcontractors. We paid Octagon extra for new lighting, insulation and to have the entire ceiling sheetrocked and painted. Todd tried to resolve all problems but when the painters came back several times to fix their paint job, we finally asked for a different paint crew, but were told that they were the best. We ended up hiring another painter who gave our ceiling and walls a clean cut look. Octagon was willing to pay for the paint and a couple of rollers, but we had to pay the painter for the five hours it took to re-edge the ceiling and walls and to repaint one wall. The electrician they hired did a great job! After some heavy rains, we are pleased that our ceiling is dry and hope it will stay that way. Despite the issues we encountered (there were more than are mentioned here) everyone from Octagon was pleasant. In our opinion, Octagon needs to remember that quality work needs to prevail even if their margin of profit has to occasionally shrink to adequately remedy problems.

Ken Hepworth

21:01 24 Jun 25

We had a soot puff back from our non vented propane fireplace that required both extensive cleaning, ceiling painting and some wall painting. Octagon handled both the cleaning and the painting and we are very pleased with their work. Every one of their employees were personable and efficient and we would not hesitate to hire them again. Thanks again, Octagon! You made a painful experience much more bearable.

Walker Newell

12:51 16 Jun 25

Solid service and great communication!

M D

14:13 05 Jun 25

Short version - Todd and his team were professional and wonderful to work with. Every job will have a punch list when it is "done" - they addressed those items quickly. I would definitely hire them again.

Longer version - I hired them to do repairs after the remediation that their sister company, Octagon Cleaning and Restoration, did. Todd was thorough in his estimate and helpful with ideas about working with insurance. The job involved drywalling and repainting. The crew Todd sent was professional and personable. They did a good job of keeping me up to date on what they were going to do and when. They kept the jobsite clean. They did a great job blending the new drywall into the existing drywall. And our normally skittish dog loved them. I would hire them again.

Jeff Ribeiro

18:21 28 May 25

Todd was excellent at keeping me up to date on what next steps were and the crews that fixed up my basement were quick and professional. I am very happy with the results.

Amy Nyce

17:17 22 May 25

Octagon added a half-bath to the upstairs of my small Cape Cod home. It was an extensive project, due to demolishing and rebuilding two closets in order to build out the bath. Although a couple of things required additional care, Alex Hoyt was excellent as the overall manager of the job. He was completely professional and very invested in the job being done to my satisfaction. He succeeded. I wouldn't hesitate to work with him again in the future.

Alyssa Giacobbe

19:23 08 May 25

Had a great experience with Octagon who oversaw the reframing of 11 windows in all sorts of different conditions on my older house. The work was quick and neat, everyone was friendly, price was reasonable, and I would gladly work with them again.

The Octagon Advantage.

Prompt Scheduling

No waiting, no delays. Our responsive remodeling contractors in Maine, who also manage projects in New Hampshire, set dependable timelines.

Energy Savings That Last

Cut your utility bills and keep saving year after year. Our energy-efficient upgrades can reduce costs by up to 30 percent while making your property more comfortable.

Trusted Partnerships

With support from our sister company, your property is stabilized and then rebuilt by reliable remodeling contractors in Maine whose work extends into New Hampshire.

Future Rebates

Save even more on your upgrades. We will guide you through upcoming rebate programs to help you maximize your financial benefits.

Local Roots, Local Trust

We live and work where you do. With deep knowledge of Maine and New Hampshire, we proudly serve local communities with integrity and care.

Certified Expertise

Work only with proven professionals. Our licensed, insured team is recognized by the Better Business Bureau for trusted service and reliable results.

Quality Work Guaranteed

Your investment is protected. Every project includes a one-year workmanship guarantee for lasting peace of mind.

Customer-First Approach

Your property is our priority. We treat every project as if it were our own, ensuring your needs, comfort, and satisfaction always come first.

Bringing Vision to Reality

Our Sister Company

Octagon Cleaning and Restoration

Octagon Construction and Energy partners with Octagon Cleaning and Restoration to deliver complete property care. Octagon Cleaning and Restoration manages cleanup and damage mitigation, while Octagon Construction and Energy focuses on rebuilding and lasting improvements. Together, this partnership provides clients with a seamless solution from start to finish, ensuring that every property is stabilized, restored, and strengthened.

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Our Blog

Discover Insights

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Rebuilding Better: How Modern Materials Make Maine Homes Stronger

Sealing the Season: Why Window and Door Upgrades Are Maine’s Best Winter Investment

From Cleanup to Construction: How Our Partnership with Octagon Cleaning & Restoration Simplifies Your Recovery

Discuss Your Project

Tell us about your plans, whether it is rebuilding after damage, a remodel, or a new roofing project. Our expert remodeling contractors in Maine, who also work with New Hampshire clients, will review your details and connect promptly.

Build Stronger,
Live Better

Octagon Construction & Energy provides trusted reconstruction and remodeling services delivered by reliable remodeling contractors in Maine, serving New Hampshire as well, backed by licensed experts and a Better Business Bureau seal.

Start Your Project Today

Octagon Construction & Energy

Construction is Our Business. Restoring Lives is Our Mission — Your Trusted Remodeling Contractors in Maine and New Hampshire

If your property needs rebuilding, repairing, or reimagining, our skilled remodeling contractors in Maine who also work across New Hampshire are ready to help.

About Us

Rebuilding with Quality, Comfort, and Value.

Clients' Reviews

The Octagon Advantage.

Prompt Scheduling

Energy Savings That Last

Trusted Partnerships

Future Rebates

Local Roots, Local Trust

Certified Expertise

Quality Work Guaranteed

Customer-First Approach

Bringing Vision to Reality

Octagon Cleaning and Restoration

Discover Insights

Rebuilding Better: How Modern Materials Make Maine Homes Stronger

Sealing the Season: Why Window and Door Upgrades Are Maine’s Best Winter Investment

From Cleanup to Construction: How Our Partnership with Octagon Cleaning & Restoration Simplifies Your Recovery

Discuss Your Project

Build Stronger, Live Better

Build Stronger,
Live Better