Your Local Plumbing and Home Energy Team in Waltham
Plumbing Services in Waltham, MA
Colt Home Services provides plumbing services in Waltham, MA, including plumbing repair, water heater installation, tankless water heaters, leak detection, repiping, and boiler services. We also help homeowners improve comfort and efficiency through Mass Save home energy assessments, insulation, and air sealing.
Home Services Available in Waltham, MA
We provide plumbing services, water heater solutions, leak detection, and energy efficiency upgrades for homeowners in Waltham and nearby areas.

Plumbing Services
Plumbing repair, water heaters, leak detection, repiping, boiler work, and fixture installation for Waltham homeowners.

Water Heaters
Water heater repair, installation, replacement, and tankless water heater services in Waltham, MA.

Mass Save Services
Home energy assessments, insulation, air sealing, and rebate guidance through the Mass Save program.
About Colt Home Services
Who We Are
Colt Home Services is a local, employee-owned company serving Waltham, MA and surrounding communities. We provide residential plumbing services and home energy solutions for homeowners who want dependable service and long-term value.
Our work includes plumbing repair, water heater installation, tankless water heaters, leak detection, repiping, boiler services, insulation, air sealing, and Mass Save home energy assessments. We focus on practical recommendations, quality workmanship, and clear communication from start to finish.
Your Partner for Energy Efficiency & Plumbing
Local Service Backed by Trusted Industry Partners
Colt Home Services works with established partners and programs to provide plumbing, heating, insulation, and energy efficiency solutions for homeowners in Waltham and across Greater Boston.













Home Service Resources for Waltham Homeowners
Explore helpful articles about plumbing services, water heaters, leak detection, Mass Save home energy assessments, insulation, and air sealing for homes in Waltham, MA and nearby communities.
Read Our Reviews from Google
Colt Home Services
5.0 310 reviews
-
Huu Trung B
I had a very effective insulation upgrade service from start to finish. Jacky was incredibly helpful and supportive whenever I needed assistance, always responsive … Read More and professional. The surveyor provided thorough advice about my home’s condition and clearly explained the most suitable options available.★★★★★ a month ago
The technical team (apologies for not remembering their names) worked diligently and efficiently, even in the middle of very cold winter weather. I truly appreciate their hard work and dedication. Highly recommended! -
P
Joe did my MA Save assessment, and gave very thorough explanations, and installed 2 new shower heads. He answered all questions. He’s was very knowledgeable and … Read More easy to talk to. I am quite pleased with the visit.★★★★★ a month ago -
kristi G
Joe was absolutely wonderful! He communicated clearly, was prompt, extremely professional and knowledgeable. He spent an inordinate amount of time explaining every … Read More detail of work needed and was ready with suggestions on how to save money and lower our carbon footprint. We highly recommend Joe and Colt Home Services.★★★★★ 2 months ago -
Chris M
I never write reviews, ever. I had to write this one because I was honestly blown away by this company.★★★★★ 3 months ago
It started with Sean coming over for what I assumed was … Read More just a standard quick inspection. He didn't just look around, he actually installed 6 new thermostats in my house right then and there, completely for free (to me). That set the tone for the whole experience, and the crew that came later really amazed me also.
Jack and Jacob contacted me when they were on the way, showed up exactly on time, and worked harder than I expected was possible. They had to fully insulate the house (attic, 2nd floor, 1st floor, basement, and an outside crawl space). The weather was miserable. It was absolutely freezing outside, and then it started pouring rain. Jack and Jacob were up on ladders, freezing and soaking wet, and they just kept working without a single complaint. They honestly could have taken the easy route and drilled through my inner walls to get the job done fast. Instead, they chose to do it the hard way to make sure they didn't destroy the inside of my house. They took the time to remove the vinyl siding, drill from the outside in, and then put the siding back on perfectly. You just do not find people who care that much about your home anymore.
Jack was incredible at keeping me fully updated through the entire process so I never had to guess what was going on. It turned into a massive project. What was supposed to be a 2-day job turned into 4 days of them working morning till night. They stayed until it was done right, they were extremely polite and knowledgeable the whole time, and there was zero upcharge for the extra days of labor.
Jack, Jacob, and Sean are the absolute stars of the show here. These guys are who you want to work on your home, period. -
James H
Joe Frasso did a very good job with analyzing my home and assessing the needs to make iy more efficient. He was very pleasant, informative, and helpful with talking … Read More about the needs and options.★★★★★ 4 months ago -
David S
I had a wonderful experience. Joe was a pleasure to deal with. He was extremely thorough in his assessment and communicated everything to me on how to make our home … Read More more efficient and carbon neutral, we are going to move forward with insulation and are very intrigued in moving off of oil now that he explained to us the turn key program! Highly recommend colt home services!★★★★★ 4 months ago -
Alicia F
Joe was great during our home assessment! Very knowledgeable, answered all our questions, and provided clear direction on next steps. He showed up on time, was reliable … Read More in communication, and did a great job. If we move forward with the recommendations, we will be proceeding with Colt Home Services because of Joe.★★★★★ 4 months ago -
R T
Colt home services. From day 1 I got a good feeling. Great customer service and communication. The assessment day I met with Joe and wow. Walked me through every … Read More single finding. Explained all the routes and I could see whats like to have your property taken care of.★★★★★ 3 months ago
5 stars to this professional that went above and beyond to get the job done.
Thank you Joe and Happy New Year. Please keep making home owners happy! -
Carol H
I’ve had Mass Save energy audits in the past, but my experience with Colt Home Services was by far the most informative. Joe arrived right on time and conducted … Read More a very thorough assessment. He took time to examine every potential source of energy loss and clearly identified the specific areas that needed better insulation. I was impressed by how detailed and professional the entire process was.★★★★★ 3 months ago -
Trang M
The review/ estimation process was quick, easy and straight forward. But during the actual work, since our house is brick outside, they drilled holes inside, yet … Read More they often skipped pumping the insulation materials and just covered the holes. After finding out, we had to monitor their crew all the way until the project finished to ensure they do not skip!★★★★★ 5 months ago
We didn't notice at first, so our second floor properly just got 70% of the supposed insulation....
So you want to make sure to monitor/follow the project.
- edit: the customer service is super helpful and listening to our concerns. They want to come for quality check and provide any reparations if necessary.
-edit 2: after the QC visit, the team agreed that we indeed needed improvement! And they came back for the work within the week. We are very happy with the service this time.
Updated the rating from 3 -> 4 -> 5 star now -
Elisabeth S
Justin and Rob updated our insulation today. I am very impressed with how they cleaned everything up, patched the walls well, and had great attitudes! Our walls … Read More needed a lot of work and insulation but they worked hard and were so patient and kind and friendly through the whole process. Thank you for your excellent service!!★★★★★ 5 months ago -
Jenn O
Home energy assessment with Joe Frasso today- he arrived on time, was efficient but thorough, provided helpful recommendations. 100% recommend.★★★★★ 5 months ago
Mass Save Rebates and Home Energy Assessments in Waltham, MA
Homeowners in Waltham may qualify for Mass Save rebates through a no-cost home energy assessment. Our team helps identify insulation, air sealing, and heating improvements that can improve comfort and reduce energy loss. This service works alongside our plumbing and home system support to help homeowners improve overall home performance.
Mass Save® Assessment
Schedule a no-cost home energy assessment in Waltham, MA to identify rebate-eligible upgrades.
Learn More
Mass Save® Insulation
Insulation upgrades may help reduce heat loss and improve indoor comfort throughout the year.
Learn More
Efficient Windows
Air sealing helps reduce drafts and improve efficiency by closing gaps where air escapes.
Learn More
Heating and Cooling
Eligible heating and cooling improvements may qualify for Mass Save rebates and financing.
Learn More
Serving Waltham, MA and Nearby Communities
Colt Home Services primarily serves homeowners in Waltham, MA, while also working in nearby communities throughout Greater Boston. Our team provides plumbing services, water heater installation, leak detection, Mass Save home energy assessments, insulation, and air sealing across the region.
Whether you need plumbing repair, a new water heater, leak detection, or a Mass Save home energy assessment, Colt Home Services is ready to help.
Schedule Plumbing or Home Energy Service in Waltham, MA
Get Started
Call Colt Home Services for plumbing services in Waltham, MA, including water heater repair, leak detection, repiping, boiler services, and Mass Save energy upgrades.


