Key takeaways
- Choose a contractor before you have an emergency, if you can.
- Check licensing and insurance, read reviews carefully, and ask for references.
- A real quote comes after someone has looked at your house and calculated the load.
- Longevity and a reputation with groups such as the Better Business Bureau are useful signals but not guarantees.
- Ask about service after the sale, because that is where companies show who they are.
Why the choice matters
Most homeowners choose an HVAC contractor under pressure, in the middle of a cold night or a heat wave, with a short list of whoever answers the phone. That is understandable, and it is how people end up with the wrong system or an unhappy relationship. The equipment is only part of the result. The quality of the installation, the honesty of the advice, and what happens when something goes wrong decide whether you are glad you chose them.
If you can, choose before you need to. A tune-up visit is a low-stakes way to see how a company works. If you are already in an emergency, the checklist below still helps. Read it quickly and call two or three companies if you can. For the quick version of who we are, see our about page.
The basics to verify
| Check | Why it matters | How to verify |
|---|---|---|
| Licensing | Massachusetts regulates gas fitting, plumbing, sheet metal, and electrical work, and oil burner work is regulated as well | Ask for license numbers and confirm with the relevant state board |
| Insurance | Protects you if something is damaged or someone is hurt | Ask for a certificate of insurance, and confirm workers compensation coverage |
| Permits | Required for new equipment in most towns and part of a code-compliant job | Ask who pulls permits and whether inspections are included |
| Reputation | Past customers know how a company behaves when something goes wrong | Read reviews on several sites and look for how the company responds to complaints |
| Longevity | A company that has been around a long time has stood behind its work | Ask how long they have been in business and whether the ownership has changed |
| Specialization | Boilers, heat pumps, and oil systems call for particular skills | Ask how many jobs like yours they do |
We are not going to claim anything we cannot back up here. Ask every company, including us, to show you the paperwork behind its claims.
Signals that carry weight
- Time in business. Fifty years is a record that shows up in the community. Look for a company that can tell you something specific about its history.
- Better Business Bureau rating. A rating from the BBB reflects how a company handles complaints. It is a useful signal, not a guarantee. Look at the details and not only the letter.
- Family ownership. In a family business, the people whose name is on the truck often answer for the work. Ask who will actually be in your house.
- Consistent reviews. Look for patterns across many reviews, not a single glowing one or a single angry one.
- How they answer the phone. A company that is reachable at odd hours and returns calls tends to behave the same way after the sale.
What a good estimate looks like
Be wary of a quote that arrives without anyone looking at your house. A good estimate is a conversation and an inspection. The contractor walks the house, checks the existing equipment, ducts, and piping, asks about comfort problems, and measures. They should calculate the heating and cooling load for your house instead of copying the size of what is there.
A good written quote includes
- The exact equipment, with make, model, size, and efficiency ratings
- A description of the work, including removal, venting, drains, electrical, and duct changes
- What is not included, so there are no surprises
- The warranty on parts and labor, and who handles claims
- The payment schedule, with no demand for the full amount up front
- Permit and inspection responsibility
- A start date and an estimated duration
- A contact person and a phone number that is answered
For what drives the price, see our cost guide for Massachusetts homes.
Red flags
- A price quoted on the phone with no visit, for a replacement.
- Pressure to sign today, or a discount that expires the moment you leave.
- A recommendation for the biggest, most expensive system with no calculation behind it.
- Reluctance to put things in writing, or to show license and insurance information.
- A request for full payment before work begins.
- Dismissing your questions or refusing to explain a finding.
- A claim that your equipment is dangerous, with no explanation and no chance to see it.
- A very low bid that omits permits, duct work, or commissioning.
Questions to ask every contractor
Ten questions
- How long have you been in business, and who owns the company?
- Can you share your license numbers and proof of insurance?
- How will you size the system for my house?
- Will you inspect my ducts or piping, and what will you do if they need work?
- Who will do the installation, and are they your employees?
- What warranty do you offer, and what does it cover?
- Do you offer maintenance, and what does it include?
- What happens if something goes wrong after the install?
- Do you offer service outside business hours?
- Can you give me references from nearby homes?
Our answers are on our pages for installation, maintenance, and emergency service. Our hours are 24 hours a day, 7 days a week at (781) 353-8852.
Judge them on what happens after the sale
Almost every contractor is friendly before you sign. What matters is how they act when a part fails, a room is still too hot, or the invoice has a question. Ask about service after the sale. Ask who you call, whether you will reach a person, and how quickly problems get addressed. A company that wants to maintain the system it installed has a reason to install it well, because it will see the results every year. One that only installs and moves on does not.
If you would like to see how we work, request a free estimate or call (781) 353-8852. You will get a written quote, an honest recommendation, and a family owned company that stays reachable.
Questions homeowners ask
Should I get multiple quotes?
Yes, for larger projects. Compare the scope and equipment, not only the price.
Is the cheapest quote the best?
Rarely. A low bid may omit sizing, duct work, permits, or commissioning. Compare line by line.
How long should a good estimate visit take?
Often an hour or more for a replacement, because the contractor needs to inspect and measure. A five minute visit is a warning sign.
Do I need to be home for the install?
Someone should be available at the start and the end. We will tell you what to expect.
What is the best time of year to hire a contractor?
Spring and early fall are calmer, which gives you more time and more options than the first cold snap or heat wave.
Related services
Sources and further reading
Written by the team at Home Heating and Cooling in Norwell, MA. We review our guides at least twice a year and update them when equipment, codes, or programs change. Last updated October 23, 2026.
