
Heating Installation in Northwest Washington
Furnaces · Boilers · Heat Pumps · Radiant · New Construction · Remodels. Licensed heating specialists installing every type of system across Bellingham, Mount Vernon & Anacortes.
The Right Heating System Installed Right Keeps Your Home Comfortable for Decades
A heating installation is one of the most important investments you make in your home. The wrong system type wastes fuel and never reaches comfort. The wrong size short cycles or runs constantly. Poor ductwork or piping creates cold rooms and uneven temperatures. Bad gas connections create safety hazards. And an installation that skips permits and inspections creates liability. Every decision — system type, sizing, fuel source, distribution method, controls, and commissioning — affects comfort, safety, efficiency, and cost for 15 to 25 years.
LaVergne's handles complete heating installation including heat load calculation, system selection and sizing, gas line work, venting, ductwork or hydronic piping, electrical and thermostat wiring, combustion testing or refrigerant charging, airflow or flow balancing, and permit coordination for furnaces, boilers, heat pumps, and radiant systems across Bellingham, Mount Vernon, Anacortes, and surrounding areas.
What to Look for in a Heating Installation Specialist
Heating installation spans multiple trades — gas fitting, electrical, sheet metal for ductwork, copper and PEX for hydronic piping, refrigerant handling for heat pumps, and controls wiring. A company that only knows one system type will push that system whether it's right for your home or not. You need a company that installs every type of heating system and recommends the best fit based on your home, not their limitations.
Why LaVergne's?
We check every box. Installing heating systems since 1951.
- Licensed & Insured (#LAVERPH798NZ)
- 75+ Years of Heating Installs
- Every Heating System Type
- Proper Heat Load Calculation
- 5 Star Customer Reviews
- Permit & Inspection Coordination

Heating Installation Services
Six installation service areas covering every heating system type, application, and project scenario, handled start to finish by licensed specialists.
Gas Furnace Installation
Furnace positioning, gas line sizing and connection, venting, supply and return ductwork, electrical wiring, thermostat setup, combustion testing, airflow balancing, and heat verification to every room.
Install →Boiler Installation
Boiler positioning, gas or oil connection, venting, hydronic piping to radiators, baseboard, or radiant loops, circulator pump setup, expansion tank, controls, and system pressurization and testing.
Install →Heat Pump Installation
Indoor and outdoor unit placement, refrigerant line set, electrical wiring, condensate drain, thermostat configuration, ductwork connection or ductless head mounting, refrigerant charge, and performance testing.
Install →Radiant Floor Heating
In floor hydronic tubing layout, manifold installation, boiler connection, circulator pump setup, zone valve configuration, thermostat wiring, pressure testing, system fill, and heat output verification.
Install →New Construction
Complete heating system for new homes. System selection, load calculation, rough in during framing, gas stub out, duct or pipe layout, final unit set, controls, commissioning, and inspection coordination.
New Build →Additions & Conversions
Extending heating to additions, finished basements, ADUs, and converted spaces. System evaluation, new duct or pipe runs, zone addition, thermostat setup, and integration with existing system.
Expand →Planning a Heating Installation?
New construction, remodels, conversions, and upgrades across Bellingham, Mount Vernon, Anacortes and all surrounding areas.
How to Choose the Right Heating System for Your Home
The right heating system depends on your home's size, insulation, existing infrastructure, fuel availability, climate, and priorities. There is no single best system — only the best system for your situation. Here are the four main types we install and what each does best.
We evaluate your home, calculate your exact heat load, assess your existing infrastructure, and recommend the best system type and size for your situation and budget. No bias toward any system type.
Gas Furnace
Forced air through ductwork. Most common, lowest cost, fast heat. Best for homes with existing ductwork and gas service. Single stage, two stage, and variable speed options.
Learn More →Boiler System
Hot water through radiators, baseboard, or radiant floor. Quiet, even heat, no ductwork needed. Best for older homes, remodels without duct space, and comfort focused homeowners.
Learn More →Heat Pump
Electric, highly efficient, heats and cools. Ducted or ductless mini split. Best for moderate climates, homes without gas, and homeowners who want heating and cooling in one system.
Learn More →Radiant Floor
Hydronic tubing under flooring. Invisible, silent, even heat from the floor up. Best for new construction, bathroom and kitchen remodels, and homeowners who want the most comfortable heat.
Learn More →

Why Professional Heating Installation Matters
A heating installation integrates fuel combustion or refrigerant transfer, heat distribution through ductwork or piping, electrical controls, safety devices, and venting into one system that must operate safely for 15 to 25 years. An oversized furnace short cycles. A boiler with air in the lines won't circulate. Incorrect refrigerant charge destroys a compressor. Bad gas connections leak. Improper venting creates CO hazards.
Licensed heating installers calculate your exact heat load, select the right system type and size, run all fuel and distribution connections to code, wire controls and safety devices, perform commissioning tests, balance heat delivery to every zone, and coordinate permits and inspections.
Load Calculated
Sized to your exact heat loss
Full Code
Every connection to standard
Commissioned
Every zone tested and balanced
Heating Installation FAQs
Common heating installation questions answered by our licensed specialists serving Whatcom and Skagit Counties.
How much does heating installation cost?
New heating installation typically runs $4,000 to $15,000 depending on system type, efficiency, sizing, and complexity. Furnaces are lower end. Boiler and radiant systems run higher. We provide detailed written quotes.
How long does installation take?
A furnace install takes 1 day. Boiler systems take 2 to 3 days. Heat pump installations take 1 to 2 days. New construction with full distribution takes 3 to 5 days across rough in and final phases.
Which system type is best?
Depends on your home, existing infrastructure, and priorities. Furnaces are most common and cost effective. Boilers provide the most even heat. Heat pumps are most efficient and also cool. We evaluate and recommend honestly.
Do I need a permit?
Yes. Most jurisdictions in Whatcom and Skagit Counties require mechanical, gas, and sometimes plumbing permits for heating installation. We handle all permit applications, fees, and inspection scheduling.
Can you install where I have no system?
Yes. We design and install complete heating systems for homes and buildings that have never had central heat. This includes system selection, distribution design, fuel connection, controls, and full commissioning.
Can I switch system types?
Yes. We convert oil to gas, baseboard to radiant, forced air to hydronic, and any other heating conversion. We evaluate your existing infrastructure and recommend the most practical and cost effective path.
What is included in the installation?
Every install includes the heating unit, fuel connection, venting or refrigerant lines, distribution connection, electrical wiring, thermostat setup, commissioning tests, balancing, and permit coordination.
Can I add cooling at the same time?
Yes. Heat pumps provide both heating and cooling. We also install matched furnace and AC systems that share the same blower and ductwork. Installing both at once saves on labor and ensures compatibility.
What areas do you serve?
We install heating systems across all of Whatcom and Skagit Counties including Bellingham, Mount Vernon, Anacortes, Burlington, Sedro Woolley, Ferndale, Lynden, and surrounding areas.
