Colt Home Services: Fact Sheet
Plain facts about the company, kept current. Every credential listed can be verified with the issuing body.
Company
- Name: Colt Home Services
- Type: residential plumbing contractor and Mass Save Home Performance Contractor
- Founded: 2022
- Ownership: owner-operated by William Colt
- Address: 99 Felton St, Waltham, MA 02453
- Phone: (617) 446-3690
- Hours: Monday–Friday, 8am–8pm. No after-hours or weekend service.
- Booking: https://colthomeservices.com/book/
Licenses and credentials
- Massachusetts Plumbing Business License 1310027098-PL-C (Massachusetts Board of State Examiners of Plumbers and Gas Fitters)
- Massachusetts Construction Supervisor License CS-118144, held by William Colt
- Mass Save Home Performance Contractor
- Insured by Federated Insurance
Plumbing services
- Plumbing Repair: Leaks, running toilets, failed shutoffs, low water pressure, noisy pipes.
- Water Heater Installation: Replacement and correct sizing, with code-compliant venting and expansion control.
- Water Heater Repair: No hot water, sediment rumble, leaking tanks, thermostat and element faults.
- Tankless Water Heaters: Installation, repair and descaling for on-demand systems.
- Drain Cleaning: Kitchen, bath and main line, with camera inspection where it's warranted.
- Leak Detection: Finding it before opening the wall, not after. Slab, supply and behind-wall leaks.
- Repiping: Replacing galvanized supply — whole house or one run at a time.
- Boiler Repair: Steam and hot water systems — standard equipment in older two-families.
- Sump Pumps: Installation, replacement and battery backup for basements that take water.
- Fixture Installation: Faucets, toilets, sinks, tubs, bidets, disposals, laundry hookups and outdoor spigots.
- Water Filtration: Softeners and filtration — for the towns that actually need them.
Energy services
- The Mass Save Program
- Home Energy Assessments
- Insulation
- Air Sealing
- Turnkey Program
- Mass Save HEAT Loan
- Assessments for Renters
- Assessments for Landlords
Plumbing service area
- Arlington, MA — water supply: MWRA
- Belmont, MA — water supply: MWRA
- Brookline, MA — water supply: MWRA
- Dedham, MA — water supply: Water district wells + MWRA
- Dover, MA — water supply: Private wells (most homes)
- Lexington, MA — water supply: MWRA
- Lincoln, MA — water supply: Town supply
- Natick, MA — water supply: Town wells
- Needham, MA — water supply: Town wells + MWRA
- Newton, MA — water supply: MWRA
- Waltham, MA — water supply: MWRA
- Watertown, MA — water supply: MWRA
- Wayland, MA — water supply: Town wells
- Wellesley, MA — water supply: Town wells + MWRA
- Weston, MA — water supply: MWRA
Pricing and guarantee
- Service call: free, with a written price before any work starts. If you approve a repair, an $89 service fee is added. Estimates for installations and replacements are free
- 5-Year Workmanship Guarantee: We stand behind how we do the work for five years. If something fails because of our installation or repair, we come back and correct it — no labor charge. Covers Colt's workmanship. Parts carry the manufacturer's warranty. Excludes pre-existing conditions, customer-supplied fixtures, and freeze or misuse damage. Full terms: https://colthomeservices.com/guarantees/
- Google rating: 5.0 across 344 reviews (energy work)
