Heat pumps are more sensitive to install quality than any other piece of HVAC equipment. Wrong sizing, wrong refrigerant charge, wrong defrost-cycle setup, or a poorly placed outdoor unit will cost you efficiency, comfort, and equipment life — and most of those problems show up two winters later, not on day one. We do one thing on the heat pump side: we install new systems correctly the first time. Every install at Sadler goes to a team that does this work every day. If you need a heat pump repair, we’ll point you to a trusted local repair contractor.

A heat pump is a refrigerant-based system that transfers heat between indoor and outdoor air. In summer it works exactly like an air conditioner. In winter it reverses, pulling heat from outdoor air — yes, even cold outdoor air — and delivering it inside. Modern cold-climate heat pumps including the Navien NAZ maintain rated capacity well below freezing and continue producing usable heat to roughly -25 °C.
The Lower Mainland’s mild coastal winters are an ideal heat pump climate. Most days from October through April sit between 0 °C and +10 °C — the temperature band where a heat pump is dramatically more efficient than a gas furnace. That’s the underlying reason CleanBC, BC Hydro and FortisBC are paying out heat pump rebates worth more than any other equipment program in the province.

A standard cold-climate ducted heat pump install in a Surrey or Langley home with existing ductwork typically falls in the $11,000–$18,000 range before rebates. Ductless mini-split heat pumps start lower per zone and scale with the number of indoor heads. A complete Navien dual-fuel install (NAZ + NAM + NPF Hydro-furnace) is in the $18,000–$28,000 range before rebates and often nets out far lower than a like-for-like furnace + AC pair after the BC rebate stack. Final pricing depends on the load calculation, your existing ductwork, and electrical service. Every quote is fixed and written after the in-home assessment.
We install heat pumps across Surrey (South Surrey, Cloverdale, Fleetwood, Newton, Guildford, Fraser Heights, Morgan Creek, Grandview Heights, Elgin, Panorama Ridge, Clayton), White Rock (including Crescent Beach and Ocean Park), Langley City and Langley Township (Walnut Grove, Brookswood, Murrayville, Willoughby, Fort Langley, Clayton), Delta and North Delta, and Aldergrove.

No — John Sadler installs new heat pump systems only. We do not offer heat pump repair or maintenance. We continue to repair boilers, furnaces and hot water tanks. If you need a heat pump repair, we’ll point you to a trusted local repair contractor.
For most Surrey, Langley, White Rock and Delta homes, yes — the Lower Mainland’s mild coastal winters fall almost entirely within the temperature band where a modern heat pump is significantly more efficient than a gas furnace, and the BC rebate stack pays back a meaningful portion of the install cost. The dual-fuel pairing (heat pump + gas furnace) is the most resilient configuration for cold snaps.
A modern cold-climate heat pump including the Navien NAZ continues producing usable heat to roughly -25 °C, well below any temperature recorded in Surrey or Langley in the last decade. Most Lower Mainland winters never push the system into back-up heat at all.
A standard ducted heat pump install is typically one to two days. A complete Navien dual-fuel install (NAZ heat pump + NAM cased coil + NPF Hydro-furnace) takes two to three days. Ductless mini-split heat pumps are typically one day per zone.
We install all leading heat pump brands and we are a Navien Service Specialist for the Navien NAZ. We’re brand-agnostic on selection — we recommend whatever sizes correctly for your home, fits your existing system, and best matches the rebate program you’re applying to.
Yes. We install heat pump systems in residential stratas across Surrey, White Rock and Langley, including high-rises up to 4 stories. Strata council approval and electrical/structural review are required up front; we coordinate the documentation.
Yes — a gas permit (where applicable, for dual-fuel installs) and an electrical permit are required, plus municipal building permits in some cases. The exact permit set depends on your municipality (City of Surrey, City of Langley, Township of Langley, City of White Rock, Corporation of Delta, Township of Langley/Aldergrove). We pull all required permits as part of every install.
Our Experience
John Sadler Plumbing & Heating provides a range of heat pump services in the lower mainland. We have extensive experience working on a variety of brands in many different types of homes from modern to historical. Due to our extensive experience, there isn’t a home HVAC system we aren’t familiar with. We work on all brands of Heat pumps, including the following regardless of your home and it’s intricacies:
