Key Takeaways
- A new high-efficiency gas furnace installed in Surrey or Langley in 2026 typically costs $5,500–$9,500 all-in.
- High-efficiency (96%+ AFUE) furnaces cost more upfront but typically pay back the difference in gas savings within 4–7 years.
- Venting modifications and electrical upgrades can add $300–$3,500 to the total project cost — always get a full scope quote.
- Heat-pump and furnace paths should be compared using a home-specific system design, current energy costs and published program rules.
- A permit is required for all furnace replacements in Surrey, Langley, and all Lower Mainland municipalities.
The most frustrating thing about searching for furnace replacement costs online is that most of the numbers you find are American averages that bear little resemblance to what you'll actually pay in Surrey or Langley. BC has higher labour costs, different equipment preferences, and a regulatory environment that affects what equipment is available and what permits are required. This guide gives you real numbers from a Lower Mainland installer.
The short answer: a new high-efficiency gas furnace installed in Surrey or Langley in 2026 typically costs between $5,500 and $9,500 all-in, depending on the furnace size, efficiency rating, and any additional work required.
What's Included in a Furnace Replacement
A complete furnace replacement in the Lower Mainland includes the furnace unit itself, removal and disposal of the old furnace, installation labour (typically 4–8 hours for a straightforward replacement), new venting if required, a gas line inspection and connection, electrical connection, thermostat replacement or programming, and the required permits and inspections.
Furnace Replacement Cost Ranges for Surrey and Langley (2026)
Current-program note: rebate rules, funding, equipment, application sequence and payment timing change. Do not rely on historic rebate amounts, stacking examples, invoice calculations or eligibility examples in this article. Review the active provider terms and request a free rebate-ready estimate for a current home-specific discussion.
What Affects the Price
Furnace size (BTU output): Larger homes require higher-capacity furnaces. Oversizing a furnace is a common mistake — it causes short-cycling, reduces comfort, and increases operating costs. A proper Manual J load calculation ensures you get the right size.
Current-program note: rebate rules, funding, equipment, application sequence and payment timing change. Do not rely on historic rebate amounts, stacking examples, invoice calculations or eligibility examples in this article. Review the active provider terms and request a free rebate-ready estimate for a current home-specific discussion.
Venting modifications: High-efficiency furnaces (90%+ AFUE) use PVC plastic venting instead of metal flue pipes. If your home currently has a mid-efficiency furnace with a metal flue, the venting will need to be replaced — typically adding $300–$800 to the installation cost.
Electrical upgrades: Modern high-efficiency furnaces with variable-speed blowers require a dedicated electrical circuit. If your electrical panel doesn't have capacity, a panel upgrade may be needed — adding $1,500–$3,500 to the project cost.
Should You Replace Your Furnace or Switch to a Heat Pump?
This is the most important question Surrey and Langley homeowners face in 2026. Here's a straightforward framework:
Replace with a new gas furnace if: Your furnace is less than 15 years old and the repair cost is significant. You plan to move within 5 years. You want the lowest upfront cost.
Current-program note: rebate rules, funding, equipment, application sequence and payment timing change. Do not rely on historic rebate amounts, stacking examples, invoice calculations or eligibility examples in this article. Review the active provider terms and request a free rebate-ready estimate for a current home-specific discussion.
Current-program note: rebate rules, funding, equipment, application sequence and payment timing change. Do not rely on historic rebate amounts, stacking examples, invoice calculations or eligibility examples in this article. Review the active provider terms and request a free rebate-ready estimate for a current home-specific discussion.
BC's Gas Furnace Regulations — What You Need to Know
BC's Zero Carbon Step Code and the province's broader climate commitments are gradually restricting the installation of new gas heating equipment. As of 2026, new construction in many BC municipalities — including Surrey and Langley — requires all-electric or heat pump heating. Replacement furnaces in existing homes are still permitted, but the regulatory direction is clear: a heat pump installed today will remain compliant with BC's long-term energy direction.
Frequently Asked Questions
How long does a furnace replacement take?
A straightforward furnace replacement in Surrey or Langley typically takes 4–8 hours. More complex installations involving venting modifications or electrical upgrades may take a full day. Grove Mechanical schedules furnace replacements as full-day appointments to ensure the work is completed without rushing.
Do I need a permit for a furnace replacement in Surrey or Langley?
Yes. A permit is required for furnace replacements in Surrey, Langley, and all Lower Mainland municipalities. Grove Mechanical handles all permit applications and inspections as part of every installation.
Can I get a rebate on a new gas furnace in BC?
Current-program note: rebate rules, funding, equipment, application sequence and payment timing change. Do not rely on historic rebate amounts, stacking examples, invoice calculations or eligibility examples in this article. Review the active provider terms and request a free rebate-ready estimate for a current home-specific discussion.
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