Q: What causes boiler pressure to drop?

Common causes include small leaks, air bleeding, faulty expansion tanks, or valve issues . Low pressure can reduce heating performance and should be addressed promptly.

Q: How often should my boiler be serviced?

We recommend having your boiler professionally serviced once per year , ideally before the heating season begins. Annual maintenance helps improve efficiency, extend equipment life, and catch small issues before they become costly repairs.

Q: How do I know when it’s time to replace my boiler?

It may be time to consider replacement if your boiler: Is 15–20+ years old Needs frequent or costly repairs Is noisy, inefficient, or slow to heat Causes rising energy bills Struggles to maintain consistent heat We’ll always give an honest repair vs. replace recommendation — no pressure, just what makes sense long-term.

Q: Is boiler maintenance expensive?

Preventative maintenance typically costs far less than emergency repairs — and helps avoid no-heat calls during peak winter.

Question 1

What causes boiler pressure to drop?

Accepted Answer

Common causes include small leaks, air bleeding, faulty expansion tanks, or valve issues. Low pressure can reduce heating performance and should be addressed promptly.

Question 2

How often should my boiler be serviced?

Accepted Answer

We recommend having your boiler professionally serviced once per year, ideally before the heating season begins. Annual maintenance helps improve efficiency, extend equipment life, and catch small issues before they become costly repairs.

Question 3

How do I know what size boiler is right for my home?

Accepted Answer

The right boiler size depends on your home’s square footage, insulation, layout, heat loss, and hot water needs. We perform a professional load calculation to ensure your boiler is properly sized — not too small (inefficient) and not oversized (wasteful).

Question 4

How do I know when it’s time to replace my boiler?

Accepted Answer

It may be time to consider replacement if your boiler:

Is 15–20+ years old
Needs frequent or costly repairs
Is noisy, inefficient, or slow to heat
Causes rising energy bills
Struggles to maintain consistent heat

We’ll always give an honest repair vs. replace recommendation — no pressure, just what makes sense long-term.

Question 5

How do I know if my boiler needs repairs?

Accepted Answer

Common warning signs include:

Uneven or insufficient heat
Strange noises (banging, whistling, rumbling)
Leaks or pressure issues
Higher heating bills
Pilot light or ignition problems

If something feels off, it’s best to have it checked early.

Question 6

Is boiler maintenance expensive?

Accepted Answer

Preventative maintenance typically costs far less than emergency repairs — and helps avoid no-heat calls during peak winter.

Boiler Repair & New Installations You Can Count On

Whether your boiler needs a tune-up, an urgent repair, or a full system upgrade, our local Killington team delivers dependable heat and honest workmanship.

Why Choose Water Dog for your Boiler Services

Education-First Approach

The Right Products for Vermont Homes

Properly Sized & Engineered Systems

Master Plumber–Led Work

Honest Repair vs. Replace Guidance

Preventative Maintenance Options

Reliable Heat for Real Vermont Winters

When your boiler matters, trust Water Dog Plumbing — a hardworking local team keeping Killington homes warm, safe, and winter-ready.

Boiler Questions, Answered

Real answers to common boiler questions from a local Killington plumbing team you can trust.

What causes boiler pressure to drop?

How often should my boiler be serviced?

How do I know what size boiler is right for my home?

How do I know when it’s time to replace my boiler?

How do I know if my boiler needs repairs?

Is boiler maintenance expensive?

Get an Estimate

Stay Ahead of Winter with Preventative Boiler Maintenance

Cold weather doesn’t wait — and neither should boiler problems. Our maintenance plans help extend system life, improve efficiency, and prevent mid-winter breakdowns.