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TRUSTED BY DENNIS, MA HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon575
    Verified boiler installation services reviews

Find Boiler installation pros in Dennis

Avatar for Cotti Johnson HVAC, Inc.
Cotti Johnson HVAC, Inc.
4.3(
63
)
Gas Boiler or Radiator Heating System - Install

Serving Dennis, MA and surrounding areas

Approved

In business since 1944

Free estimates

Emergency services offered

"Everyone I spoke to at Cotti-Johnson from the estimate through to installation of my generator were polite, professional and a pleasure to deal with. At the outset, the scope of the project and its cost was explained to me in simple and understandable language. The installation took place precisely on schedule and was completed within 3 hours. I received the necessary follow-up calls from the office to ensure the work was done to my satisfaction. I couldn't be happier with Cotti-Johnson."
Home Standby Generator Installation
Home Standby Generator Installation
Home Standby Generator Installation
Home Standby Generator Installation
Home Standby Generator Installation

+56

Response time9 hrs
Response rate97%
95 neighbors recently requested a quote
Avatar for Braga Bros, Inc.
Braga Bros, Inc.
5.0(
8
)
Gas Boiler or Radiator Heating System - Install

Serving Dennis, MA and surrounding areas

Approved

Super Service Award Winner

In business since 1996

Free estimates

Emergency services offered

"Braga Brothers provided exceptional service during my gas furnace installation. The team was punctual and efficient, completing the job with confidence and professionalism. They took care to protect my home and explained the system thoroughly, ensuring I understand the new system. I highly recommend Braga Brothers for anyone in need of HVAC services."
High efficiency System
High Efficiency Hvac Syst
Central Hvac in the Basem
Central HVAC System
Rooftop

+16

Response time5 hrs
Response rate99%
1 neighbors recently requested a quote
Avatar for Tatra Building Company, Inc.
Tatra Building Company, Inc.
4.5(
16
)
Electric Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install

Serving Dennis, MA and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"Tatra has done a ton of work for me at multiple homes. * Install central AC * Replace boilers * Install appliances (in difficult old construction) * Create an outdoor shower and stone deck complex * Fix every little plumbing thing that goes wrong in an old house * Roof gutters and yard drainage improvement These are the one-stop shopping folks to call! And everyone who works there is so friendly, polite, and neat with their work. Always my first (and only) call."
Wellfleet Kitchen
Wellfleet
Preventative maintanance
Wellfleet Kitchen
Wellfleet

+54

Response time3 days
5 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Harbor Master Plumbing & Heating, Inc.
Harbor Master Plumbing & Heating, Inc.
4.7(
15
)
Gas Boiler or Radiator Heating System - InstallGas Boiler or Radiator Heating System - Install - For Business

Serving Dennis, MA and surrounding areas

In business since 2019

Free estimates

Warranties offered

"John Perez loves what he does and values the solutions he brings to folks in need of the basics, heat and hot water! He was generous with his time in educating me about boilers in order that I might feel actively involved in choosing the right heating system and, in the end, be satisfied with that choice. He is secure in himself and his professional abilities. With his support, maturity, resilience and a willingness to factor in my thinking, he gave me room to consider options and find my way toward the right solution for our project. I felt my best interest was his interest. Most importantly, he is trustworthy."
Kitchen Remodel
HE Boiler Install
Rinnai OnDemand
Water Heater Install
Fire Pit Connection

+3

Response time1 day
Recommended by61%of homeowners
Showing 1-10 of 48
Install Boiler questions, answered by experts

The absence of heating or hot water, unusual noises like banging or gurgling, and visible water leakage are key signs. Abnormal boiler pressure, flame irregularities (for gas boilers), or pilot light issues may also signal trouble. Frequent cycling, soot or staining, and unusual odors, particularly gas-like smells, should not be ignored. Modern boilers often display error codes or lockout mode upon detecting issues. Uneven heating across radiators and rising energy bills without increased usage can further point to problems. Prompt attention to these signs is essential to prevent further damage and ensure safety.

Yes, most municipalities require a permit for propane boiler installation to ensure safety and code compliance. Permit fees vary by location and are often included in your installer’s quote, as they’ll handle the permitting process. Ensure that you always check local regulations before starting your project to avoid fines or delays.

You should get anywhere from three to five quotes for HVAC replacement to get an idea of the average cost of a new unit. Although this quote-collecting process can be time consuming, it allows you to compare what work is required, what type of unit you should install, and how much you should expect to pay for the service.

An expansion tank must always be installed on the supply side, which is the side where the boiler sends water out to heat the systems. That placement allows the water to push against the air and condense properly as it is heated, then circulated through the system. Professional installers can recommend the best place on the supply side for an expansion tank.

The best way to compare HVAC quotes is getting a few detailed quotes from local companies with good reputations. Then, go over the quotes line by line. Protect yourself by insisting on in-person estimates that include equipment manufacturer names, model numbers, SEER ratings, amounts and numbers of materials, details of warranties on equipment and labor, and other specifics. 

Knowing the exact equipment and materials is the only way that you can fairly compare quotes. Quotes that are much lower than others can be a sign that the company isn’t providing the best quality service or materials.

The Dennis, MA homeowners’ guide to boiler installation services

From average costs to expert advice, get all the answers you need to get your job done.