
Radiant Floor Heating in Gardiner, Maine
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Radiant Floor Heating for Gardiner Homeowners

Gardiner homeowners call Aces Highlands for radiant floor heating because we are close by, based at 508 Riverside St Unit 1 in Portland, and out on Kennebec County roads every day — we know this area's housing, weather and permit process cold.
Radiant floor heating delivers warm, even comfort from the ground up — no drafts, no noise, and no dust blowing through ducts. Aces Highlands installs hydronic radiant floor systems for new construction and renovations.
Hydronic radiant floor heating works by circulating warm water through PEX tubing installed beneath your floors. The heat radiates evenly across the floor surface, warming the room from the bottom up for consistent, draft-free comfort.
We install radiant systems in concrete slabs, under wood subfloors, and in staple-up configurations. Each system is designed with proper tube spacing, zone controls, and manifold sizing to ensure even heat distribution throughout your home. A new high-efficiency boiler is the ideal companion for a radiant floor system.
Radiant floor heating pairs perfectly with high-efficiency boilers and can also work with heat pump water heaters for an all-electric solution. We design each system based on your home, your floors, and your heating goals. Reach out for a consultation on radiant floor heating for your home.
Why Gardiner Calls Aces Highlands
- A Kennebec County crew that already knows Gardiner's streets and housing stock
- A straight diagnosis and a clear price before we touch anything — no upsell
- Most calls get on the schedule the same week you reach out
- Properly licensed and covered by insurance; Google reviewers back up the work
Gardiner Homes and What They Need
Gardiner's median home was built in 1944, with 47 percent of housing dating before 1940 and two-thirds before 1960 -- among the oldest housing stock of any Kennebec County town Aces serves. Much of it sits inside the National Register-listed downtown historic district, about 7 acres and 47 buildings along Water Street, Cobbossee Stream and the Kennebec riverbank. Exterior work in that district can draw added review, so a heat pump installation near downtown often starts with a conversation about where the outdoor unit can actually go.
Heating and Cooling in Gardiner
About 58 percent of Gardiner households heat mainly with fuel oil, with utility gas from Summit Natural Gas of Maine at 14 percent and bottled or tank propane at 12 percent, per Census estimates. That leaves a healthy share of oil-heated homes as candidates for a heat pump add-on, and gas-served streets as candidates for a straightforward furnace replacement when the old system finally gives out.

Getting to Know Gardiner
Gardiner traces back to 1754, when Boston physician and drug merchant Dr. Silvester Gardiner began developing more than 100,000 acres at the head of navigation on the Kennebec River. The city later built an economy around exporting river ice, packed in sawdust and shipped as far as the tropics, alongside a paper industry that boomed from the 1860s into the 1920s.
Gardiner's entire downtown was added to the National Register of Historic Places in 1980, and the poet Edwin Arlington Robinson, who won three Pulitzer Prizes, grew up here and is still remembered locally. That historic downtown, with its ice-and-paper-era brick blocks, is a big part of why Gardiner's housing stock runs as old as it does.
Local & Independent — Not a Franchise
We are an independent, Portland-based company, not a franchise chain routing your Gardiner job to a call center. Our techs are paid to do the job right, not to upsell — no commission structure pushes them toward extra work. We show up, fix the actual problem, and let the work speak for itself.
How Radiant Floor Heat Works
- Boiler — heats water for the loop
- Manifold — splits and balances flow to each loop
- PEX tubing — embedded in the floor slab
- Radiant floor — warms the slab evenly
- Heat rises — gently warms the room above
Homeowner Guide
Radiant Floor Heat: Installation, Manifolds & Troubleshooting
Radiant floor heat is one of the most comfortable systems we install, and one of the least understood — most homeowners have never seen the manifold that makes the whole thing work.
Read the Full GuideMore Boilers & Hydronic Heating
Radiant Floor Heating is part of our full boilers & hydronic heating lineup. Explore the details or browse everything we offer in Gardiner.
Radiant Floor Heating DetailsAll Services in GardinerService Info
Codes & Permits for Radiant Floor Heating in Gardiner
In Gardiner, plumbing permits come from the Local Plumbing Inspector at the City of Gardiner Code Enforcement Office (Gardiner City Hall, 6 Church Street, Gardiner, ME 04345, (207) 582-6892). With 5,961 residents, Gardiner is required to enforce the Maine Uniform Building and Energy Code (MUBEC). Gardiner sits at the confluence of the Kennebec River and Cobbosseecontee Stream, which drops 130 feet over falls through downtown.
- Chimneys and vents serving fuel-fired appliances, including hydronic boilers, are governed by NFPA 211, the standard for chimneys, fireplaces, and vents. maine.gov
- State law requires a carbon monoxide detector in each area within or giving access to a bedroom wherever a fuel-burning heating appliance like a boiler serves a covered dwelling. mainelegislature.org
- Installing or servicing an oil-fired boiler in Maine requires a Maine Fuel Board Oil Burner Technician license (Apprentice, Journeyman, or Master), and apprentices must work under a licensed technician. maine.gov
How Aces Highlands Handles Radiant Floor Heating in Gardiner
- Where Summit Natural Gas of Maine serves the street in Gardiner, gas equipment is usually the simplest radiant floor heating option; elsewhere we quote oil, propane and heat-pump alternatives side by side.
- With 58% of Gardiner on heating oil, most radiant floor heating calls here follow NFPA 31 (oil), NFPA 54/58 (gas/propane) or NFPA 211 (venting), depending on what's already installed.
- We don't close out a radiant floor heating without confirming CO detectors are installed near sleeping areas, which Maine requires wherever the heat comes from burning fuel.
Gardiner's municipal building on Church Street, seat of the city government.
Street View © Google
Why homeowners choose Aces Highlands
We show up when we say
We show up on time, as promised, and complete the work with clean professionalism.
Pricing upfront, before work starts
Honest diagnostics and a clear price before any work begins — no surprises on the invoice.
Done right the first time
HVAC, plumbing and electrical done right the first time — backed by our workmanship guarantee and 100% satisfaction guarantee.
Locally owned in Portland, Maine · Serving Greater Portland and Southern Maine since 2019
What HVAC customers say
John Walton
5 months ago
I've had three HVAC issues over the past two years. Each time I call, Elija or the office picks up the phone, and my problem is fixed in 24 hrs. Their solutions always feel correct and honest. I cannot recommend them more.
Adam Ayan
10 months ago
Elijah and Highlands Heating & AC were super helpful! Boiler failed over the weekend and Elijah was very responsive and helpful, getting us up and running right away. I would recommend him at HH&AC highly!
Justin Funk
a year ago
We highly recommend Highlands Heating & AC. They are extremely responsive, knowledgeable and do great work. Our boiler stopped working and Elijah was quick to respond after hours on a Friday. He installed a new boiler and heat pump hot water heater.
Tom
14 Aug 2024
He was very friendly. He gave me an honest explanation on why I shouldn't recharge my A/C unit and what he suggested made much more sense. He really took care of everything. He is very professional, always called me with updates. 5 stars is not enough — I give this company 10 stars.
Ryan Eling
3 months ago
This team was called in by my property management company for where I rent. Elijah and his team were professional, clear speaking. Good communicators gave me the real deal. Didn't give any runaround. I trust them and want to use them for my own projects.
Christian van Loenen
4 months ago
Beyond impressed with Elijah and his team. Professional, communicative, and do great work. HIGHLY recommend. Thank you, Elijah!
Radiant Floor Heating FAQs
Does radiant floor heating work under wood and tile floors?
Yes. Tile and stone are the best conductors and feel warmest; engineered wood and many hardwoods work well when water temperatures are designed for them; even carpet can work with the right pad. We design the tube layout and water temperature around your specific floor covering.
Can radiant floors heat my whole house?
Yes — with a properly done heat-loss calculation and design, hydronic radiant can be the sole heat source for a Maine home. In retrofits, many homeowners run radiant in key rooms and keep baseboard or a heat pump elsewhere, all off the same boiler with separate zones.
Is radiant floor heating efficient?
Very. Radiant runs low water temperatures that let condensing boilers operate at peak efficiency, distributes heat without duct losses, and keeps warmth at occupant level — so most homes feel comfortable at a lower thermostat setting than with forced air.
Can you add radiant heat to an existing room?
Often yes. If the subfloor is accessible from below (an unfinished basement under a kitchen, for example), staple-up radiant installs without disturbing the finished floor. Bathrooms and kitchens being remodeled are the other classic opportunity.
How long does a radiant floor system last?
The PEX tubing itself is typically rated for 50+ years — it generally outlives the boiler feeding it. The system has no moving parts in the floor; circulators and controls at the boiler are the only components that ever need service.
More Services in Gardiner
Aces Highlands handles HVAC, plumbing, and electrical for Gardiner homeowners. Here is more of what we do nearby.
Furnace Installation in Gardiner
Furnace Installation in GardinerFurnace Repair in Gardiner
Furnace Repair in GardinerFurnace Maintenance in Gardiner
Furnace Maintenance in GardinerLeak Detection & Repair in Gardiner
Leak Detection & Repair in GardinerFixture Installation in Gardiner
Fixture Installation in GardinerDrain Cleaning in Gardiner
Drain Cleaning in GardinerNeed Radiant Floor Heating in Gardiner?
Call our Gardiner team or get a free quote. We will get you scheduled and take care of it right the first time.
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