Ground-source comfort from Bothwell

Heat from the ground.
Grown for Chatham-Kent.

Fern Gully Heating & Cooling has designed and serviced geothermal, heating, cooling, and indoor air quality systems across Chatham-Kent and the surrounding region for over thirty years. Owned by John DeBok, now backed by the wider Jayden's Mechanical family.

Get a Free Evaluation (519) 401-2099

IGSHPA-trained installers Geothermal specialists 8 counties served

Geothermal heat pump and ground-loop installation at a Chatham-Kent home

30+ Years in Chatham-Kent

30+ Years under the same owner

500% Geothermal efficiency

70% Heating & cooling savings

8 Counties served across SW Ontario

30+Years under the same owner

About Fern Gully Heating & Cooling

Fern Gully Heating & Cooling is a geothermal, heating, cooling, and indoor air quality contractor based in Bothwell, Ontario. John DeBok has owned and run the business for more than thirty years, serving homes and farms across Chatham-Kent and the surrounding region.

In 2025 the company joined the Jayden's Mechanical family. The Fern Gully name, the Bothwell home base, and the licensed crews all continue, now backed by a wider group for parts, crews, and financing. For longtime customers, almost nothing changes day to day except the depth behind the work.

What we do

One crew for ground-source comfort and the whole home

From a geothermal retrofit to a furnace repair, a radiant floor, or an air-quality upgrade, the trades that make a Chatham-Kent home comfortable and efficient all live under one roof.

Flagship

Geothermal

Chatham-Kent geothermal. Steady ground temperature turned into low-cost heating and cooling.

Explore Geothermal

In-Floor & Radiant Heating

Hydronic in-floor radiant heat, the comfortable, even heat rural Ontario homes ask for.

Explore In-Floor Radiant

Indoor Air Quality

HRVs, ERVs, filtration, and humidity control that keep the air in your home clean and balanced.

Explore Indoor Air Quality

HVAC technician servicing a high-efficiency furnace in a home basement

Furnace & Heating

High-efficiency furnaces and boilers serviced and installed by licensed gas techs.

Explore Furnace & Heating

Central air conditioning condenser unit installed beside a home

Air Conditioning & Cooling

Central air, ductless mini-splits, and heat pumps sized and installed for Ontario summers.

Explore AC & Cooling

How we work

From first call to long-term comfort

The same team that evaluates your home is the team that designs, installs, and services it. One accountable crew, end to end.

01 Evaluate A free on-site or virtual look at your home, your current system, and your goals. We tell you honestly what makes sense.

02 Design We size the system to your real heating load, map every rebate it qualifies for, and hand you the numbers before any work starts.

03 Install Licensed crews install to code, pull the permits, and complete the rebate paperwork so the incentive reaches you without the chase.

04 Service Annual maintenance and 24-hour emergency support, year after year, from the same team that did the install.

The Fern Gully flagship

Geothermal that pays for itself

A geothermal heat pump pulls heat from the ground beneath your property, delivering about five units of energy for every one unit of electricity it draws. That is roughly 500% efficiency, and most homeowners cut their heating, cooling, and hot-water costs by around 70%.

Explore Geothermal

A geothermal heat pump runs at roughly 500% efficiency, moving about five units of heat for every one unit of electricity, with no combustion, no on-site emissions, and an indoor unit that runs quietly year-round.

Most homeowners cut heating, cooling, and hot-water costs by around 70%.

With current provincial rebates and interest-free financing, the payback on a system often lands inside three to five years for the right property. We size the loop, run the savings math, and handle the paperwork.

Financing & rebates

Programs that pay for part of the work

Geothermal and heat-pump projects qualify for thousands in provincial and federal support. We handle the paperwork so the rebate is straightforward.

Up to $12,000

Ontario Home Renovation Savings Program

The provincial successor to the federal grant. Geothermal and ground-source retrofits qualify at the top of the scale, with strong incentives for heat-pump and envelope upgrades.

Up to $40,000

Canada Greener Homes Loan

Interest-free financing over ten years for eligible home energy upgrades, including geothermal and heat pumps. Still open where the federal grant has closed.

Up to $15,000

Oil-to-Heat-Pump Affordability

For homes replacing oil heating with a heat pump, a meaningful grant toward the conversion that also cuts ongoing fuel cost.

Stacking support

Geothermal / Ground-Source Incentives

Ground-source retrofits often stack provincial, federal, and local support. We map every program your project qualifies for and handle the paperwork.

See all financing & rebates

A new chapter

Thirty years of Fern Gully,
now part of a wider family.

In 2025, Fern Gully Heating & Cooling joined the Jayden's Mechanical family. Here is what that means for the customers who have trusted John DeBok for over thirty years.

For you, almost nothing changes day to day. The Fern Gully name stays. The Bothwell home base stays. The licensed crews who know Chatham-Kent stay. What is new is the backing: a larger Southwestern Ontario group means more crew for peak-season and emergency calls, access to more equipment brands, and the depth to take on anything from a single repair to a full geothermal retrofit.

The same home base. The same standard. More depth behind it.

If you have called us before, your experience carries on unchanged. If you are new to Fern Gully, you get a thirty-year local contractor with the reach of a larger group.

Credentialed

Trained, regulated, and accountable

Geothermal and gas work is specialised. Our crews carry the training and the regulatory standing that the work demands.

IGSHPA-trained Geothermal installers

TSSA-regulated Gas and oil work

HRAI member Heating, Refrigeration and Air Conditioning Institute

24-hr emergencyNo-heat, no-cool calls

Specific certification and licence numbers are available on request and will be listed here once re-verified.

Questions

What Chatham-Kent asks us

Who is Fern Gully Heating & Cooling?

Fern Gully Heating & Cooling is a geothermal, heating, cooling, and indoor air quality contractor based in Bothwell, Ontario, and serving Chatham-Kent and the surrounding region. Owned by John DeBok for more than thirty years, it joined the Jayden's Mechanical family and continues to serve its longtime customers. You can reach the team at (519) 401-2099.

Is Fern Gully still operating after the Jayden's acquisition?

Yes. The Fern Gully name, its Bothwell home base, and its crews continue under the Jayden's Mechanical family. For customers who have called us for years, the same licensed technicians and the same standard carry on, now backed by a wider Southwestern Ontario group for parts, crews, and financing.

Why geothermal, and is it worth it in Ontario?

A geothermal heat pump runs at roughly 500% efficiency, moving about five units of heat for every one unit of electricity, and most homeowners cut heating, cooling, and hot-water costs by around 70%. With current provincial rebates and interest-free financing, payback often lands inside three to five years for the right property. We provide a free evaluation and savings estimate.

What areas does Fern Gully serve?

We serve Bothwell and across Chatham-Kent and the surrounding region, including Chatham, Ridgetown, Dresden, Thamesville, Tilbury, Wallaceburg, Sarnia, Petrolia, London, and the surrounding communities. If you are unsure whether we cover your address, call us and we will confirm.

Do you handle rebate and financing paperwork?

Yes. Geothermal and heat-pump projects often qualify for the Ontario Home Renovation Savings Program, the Canada Greener Homes Loan, and other incentives. We size and install the system and handle the paperwork so the rebate is straightforward for you.

Do you offer emergency service?

Yes. Regular office hours are Monday to Friday, 8:00am to 4:30pm, with 24-hour emergency service for no-heat, no-cool, and plumbing emergencies. Call (519) 401-2099.

Tell us about your home

From a geothermal evaluation to an emergency repair, send a few details and we will call you back, usually within the hour during office hours.

(519) 401-2099

Office: Mon-Fri, 8:00am - 4:30pm
Emergency: 24-hour emergency service

Licensed technicians IGSHPA-trained geothermal installers Rebate paperwork handled

Heat from the ground.
Grown for Chatham-Kent.

About Fern Gully Heating & Cooling