4.9 · 512+ Reviews WETT & CSIA $5M Insured Same-Week
Toronto Chimney ProsWinter MMXXVI
Restored Toronto masonry fireplace at dusk with the CN Tower skyline
Cambridge · From $890

Gas Line & B-Vent Conversion in Cambridge.

Wood-to-gas fireplace conversions — gas line run, appliance set, and B-vent or direct-vent termination. We've serviced thousands of Cambridge chimneys since 2003. Our routing means the closest crew to your door is usually less than 20 minutes away.

Call (437) 475-3344
Free · 60 seconds

Your quote — in 3 quick taps.

A certified expert calls or texts back in under 15 minutes. No spam. Fixed-price written quote.

Get a callback in 15 minutes

No forms — just name & number.

WETT certified · $5M insured · 5-year warranty

Why Cambridge chooses us

Gas Conversion you can actually trust

Converting an open wood fireplace to gas means more than dropping in a log set. We run and pressure-test the gas line, install the appliance, and vent it correctly — B-vent through the existing masonry flue with a listed liner, or direct-vent through the wall.

Every Cambridge job is quoted in writing before any work begins, and backed by a 5-year workmanship warranty.

Scope

What's included

Benefits

  • TSSA-licensed gas fitting and pressure testing
  • B-vent liner or direct-vent termination
  • Existing masonry flue re-used where listed
  • Full combustion and CO commissioning

Our process

  1. 1. Load calculation and gas line routing plan
  2. 2. Run and pressure-test the line to the hearth
  3. 3. Install appliance and listed vent or liner
  4. 4. Commission, CO test, and register the warranty
Cambridge coverage

We serve every Cambridge neighbourhood

Cambridge pricing

Gas Conversion pricing & options

Cost

Gas Conversion · Cambridge

Learn more →

Near Me

Gas Conversion · Cambridge

Learn more →

Same Day

Gas Conversion · Cambridge

Learn more →

Emergency

Gas Conversion · Cambridge

Learn more →

Best

Gas Conversion · Cambridge

Learn more →

2026

Gas Conversion · Cambridge

Learn more →

Price

Gas Conversion · Cambridge

Learn more →

How Much

Gas Conversion · Cambridge

Learn more →

Average Cost

Gas Conversion · Cambridge

Learn more →

Financing

Gas Conversion · Cambridge

Learn more →

Deals

Gas Conversion · Cambridge

Learn more →

Winter 2026

Gas Conversion · Cambridge

Learn more →

Top Rated

Gas Conversion · Cambridge

Learn more →

Certified

Gas Conversion · Cambridge

Learn more →

Licensed

Gas Conversion · Cambridge

Learn more →

Fully Insured

Gas Conversion · Cambridge

Learn more →

WETT Certified

Gas Conversion · Cambridge

Learn more →

CSIA Certified

Gas Conversion · Cambridge

Learn more →

Professional

Gas Conversion · Cambridge

Learn more →

Trusted

Gas Conversion · Cambridge

Learn more →

Highly Recommended

Gas Conversion · Cambridge

Learn more →

Reputable

Gas Conversion · Cambridge

Learn more →

Reliable

Gas Conversion · Cambridge

Learn more →

Expert

Gas Conversion · Cambridge

Learn more →

Master

Gas Conversion · Cambridge

Learn more →

Family Owned

Gas Conversion · Cambridge

Learn more →

Local

Gas Conversion · Cambridge

Learn more →

Recommended

Gas Conversion · Cambridge

Learn more →

Affordable

Gas Conversion · Cambridge

Learn more →

Cheap

Gas Conversion · Cambridge

Learn more →

Low Cost

Gas Conversion · Cambridge

Learn more →

Budget

Gas Conversion · Cambridge

Learn more →

Premium

Gas Conversion · Cambridge

Learn more →

Luxury

Gas Conversion · Cambridge

Learn more →

Residential

Gas Conversion · Cambridge

Learn more →

Commercial

Gas Conversion · Cambridge

Learn more →

Condo

Gas Conversion · Cambridge

Learn more →

High-Rise

Gas Conversion · Cambridge

Learn more →

Landlord

Gas Conversion · Cambridge

Learn more →

Property Management

Gas Conversion · Cambridge

Learn more →

Real Estate

Gas Conversion · Cambridge

Learn more →

Pre-Listing

Gas Conversion · Cambridge

Learn more →

Pre-Purchase

Gas Conversion · Cambridge

Learn more →

Insurance

Gas Conversion · Cambridge

Learn more →

Heritage

Gas Conversion · Cambridge

Learn more →

Century Home

Gas Conversion · Cambridge

Learn more →

New Build

Gas Conversion · Cambridge

Learn more →

Detached Home

Gas Conversion · Cambridge

Learn more →

Semi-Detached

Gas Conversion · Cambridge

Learn more →

Townhouse

Gas Conversion · Cambridge

Learn more →

Bungalow

Gas Conversion · Cambridge

Learn more →

Two-Storey

Gas Conversion · Cambridge

Learn more →

Three-Storey

Gas Conversion · Cambridge

Learn more →

Cottage

Gas Conversion · Cambridge

Learn more →

Wood-Burning

Gas Conversion · Cambridge

Learn more →

Wood Stove

Gas Conversion · Cambridge

Learn more →

Gas Fireplace

Gas Conversion · Cambridge

Learn more →

Gas Insert

Gas Conversion · Cambridge

Learn more →

Pellet Stove

Gas Conversion · Cambridge

Learn more →

Oil Furnace

Gas Conversion · Cambridge

Learn more →

Coal

Gas Conversion · Cambridge

Learn more →

Masonry Fireplace

Gas Conversion · Cambridge

Learn more →

Prefab Fireplace

Gas Conversion · Cambridge

Learn more →

Leaking Chimney

Gas Conversion · Cambridge

Learn more →

Cracked Chimney

Gas Conversion · Cambridge

Learn more →

Smoking Fireplace

Gas Conversion · Cambridge

Learn more →

Downdraft

Gas Conversion · Cambridge

Learn more →

Blocked

Gas Conversion · Cambridge

Learn more →

Old Chimney

Gas Conversion · Cambridge

Learn more →

Damaged

Gas Conversion · Cambridge

Learn more →

Storm Damage

Gas Conversion · Cambridge

Learn more →

Wildlife Removal

Gas Conversion · Cambridge

Learn more →

Creosote

Gas Conversion · Cambridge

Learn more →

Soot

Gas Conversion · Cambridge

Learn more →

Fast

Gas Conversion · Cambridge

Learn more →

Quick

Gas Conversion · Cambridge

Learn more →

Next Day

Gas Conversion · Cambridge

Learn more →

Weekend

Gas Conversion · Cambridge

Learn more →

Evening

Gas Conversion · Cambridge

Learn more →

Fall

Gas Conversion · Cambridge

Learn more →

Winter

Gas Conversion · Cambridge

Learn more →

Spring

Gas Conversion · Cambridge

Learn more →

Annual

Gas Conversion · Cambridge

Learn more →

5-Star

Gas Conversion · Cambridge

Learn more →

Reviews

Gas Conversion · Cambridge

Learn more →

Warranty

Gas Conversion · Cambridge

Learn more →

Guaranteed

Gas Conversion · Cambridge

Learn more →

No Obligation

Gas Conversion · Cambridge

Learn more →

Free Quote

Gas Conversion · Cambridge

Learn more →

Fixed Price

Gas Conversion · Cambridge

Learn more →

Upfront Pricing

Gas Conversion · Cambridge

Learn more →

24/7

Gas Conversion · Cambridge

Learn more →

Book Online

Gas Conversion · Cambridge

Learn more →

Written Quote

Gas Conversion · Cambridge

Learn more →

Phone Quote

Gas Conversion · Cambridge

Learn more →

On-Site Quote

Gas Conversion · Cambridge

Learn more →

The complete Cambridge guide

Gas Line & B-Vent Conversion in Cambridge: everything before you book

Cambridge conditions that change how gas line & b-vent conversion is done

Homeowners in Cambridge tend to call us at one of two moments: the week before guests arrive, or the week after something started smelling wrong.

Many Cambridge properties were re-roofed at least once without the flashing being re-detailed, leaving a cosmetic seal doing structural work.

Wind loading off Lake Ontario pushes driving rain against the south and west faces of a house, which is why water entry so often shows up on one side of a Cambridge home and nowhere else.

Across Riverside, Highland Park, Central Preston, Doon and West Galt, the housing stock changes street by street, and the correct method changes with it. A century home with a soft-brick stack does not get the same treatment as a 2010 build with a factory-built vent — using one method on both is how systems get damaged.

If you live anywhere near the Grand River, the practical takeaway is that a gas line & b-vent conversion visit should start with an assessment, not a tool. Any crew that begins work before telling you what they found is guessing on your behalf.

Warning signs Cambridge homeowners call us about

Homeowners rarely call because something failed — they call because something changed. In Cambridge the change is usually small, seasonal, and easy to talk yourself out of.

Symptoms also tend to arrive in pairs, and the pairing is the diagnostic clue. A smell plus a stain is a moisture path. Poor performance plus a noise is usually an obstruction.

  • A crown that has hairline cracks radiating from the flue tile
  • Debris, grit or shale flakes collecting in the firebox
  • A whistling or humming noise on windy nights
  • Spalled brick faces flaking off in coin-sized pieces
  • A damper that no longer seats or no longer moves
  • Clothes taking two cycles to dry
  • A visible gap where flashing meets the wall
  • Paint or wallpaper lifting on the wall that backs the chase
  • A metallic or scorched smell during the first burn of the season

Not sure which service you need? Compare Smoke Chamber Parging in Cambridge, Creosote Removal in Cambridge, Roof Repair in Cambridge — or start with the full Cambridge service hub.

What happens from arrival to hand-off

There is no improvisation in a gas line & b-vent conversion visit. The order below is fixed, and it is the order that makes findings defensible rather than anecdotal.

Nothing in the list below is optional or upsold. If a step cannot be completed — access is unsafe, or a component is missing — that becomes a written finding rather than a silent omission.

  • Exterior walk-around to check crown, cap, flashing and termination
  • Interior protection — drop sheets, HEPA vacuum staged before any tool is opened
  • Written findings with priority ranking: safety-now, this-season, monitor
  • Baseline readings taken before work starts, so the improvement is measurable
  • Full visual assessment and photo documentation of the starting condition
  • The service itself, performed to CSIA / WETT method
  • Photo hand-off: before and after images sent to you the same day
  • Verification pass — draft test, airflow reading or water test as applicable

How gas line & b-vent conversion in Cambridge is priced

Gas Line & B-Vent Conversion in Cambridge starts at $890 for a standard, accessible system in serviceable condition. That figure is a starting point, not a quote: the honest answer is that several variables move the final price, and any company that quotes a firm number before seeing the system is either padding it or planning to revise it on site.

We give written quotes before work begins, and any repair discovered during the visit is presented as a separate priced option — never added to the invoice without your approval.

We would rather lose a job on price than win it by leaving the scope vague and revising it later.

FactorHow it affects your price
DocumentationInsurance or real-estate reports require a deeper written scope than routine service
Run lengthLonger or multi-elbow runs add labour and specialty tooling
MaterialsStainless, cast-in-place and clay each price differently for the same repair
Weather windowExterior work that must cure above 5°C is scheduled, not squeezed in
FindingsRepairs discovered during service are quoted separately and never auto-charged
UnitsMultiple flues or appliances on one visit share travel but not labour

Get your exact Cambridge price in writing

Free quote · photo report · no obligation

Call now

When to schedule gas line & b-vent conversion in Cambridge

The seasonal argument is not about price, it is about doing the work properly. Exterior repairs need temperature to cure, and a fall backlog compresses the time available for each visit.

SeasonWhat to expect
Spring (Mar–May)Best availability and pricing. Ideal for repairs — mortar cures properly above 5°C.
Summer (Jun–Aug)Quietest window. Best time for rebuilds, liner work and any project needing multiple days.
Early fall (Sep–Oct)Peak demand begins. Book 2–3 weeks ahead to secure a date before first fire.
Winter (Nov–Feb)Emergency and diagnostic work only for most exterior repairs; interior service continues.

Mistakes to avoid when hiring for gas line & b-vent conversion

The complaints we hear about other contractors in Cambridge are remarkably consistent. Almost all of them trace back to one of the items below, and almost all of them are avoidable with two questions: "will I get photos?" and "is the finding written down?"

  • Hiring the crew already on the roof for another trade, without certification for this one
  • Accepting a verbal finding with no photo evidence
  • Approving a rebuild quote without seeing the interior scope footage that justifies it
  • Booking on price alone and getting a 20-minute visit with no documentation
  • Choosing a cap or liner by price rather than by appliance and fuel type
  • Skipping the inspection because the appliance 'seems fine'
  • Sealing the symptom (caulk over a crack) instead of correcting the water path

Included, excluded, and quoted separately

Scope arguments happen when the boundary was never stated. So here is the boundary for gas line & b-vent conversion in Cambridge, in writing, before you book.

  • HEPA containment and complete clean-up of the work area
  • Answers to your questions on site, in plain language, without a sales script
  • Photo documentation before and after
  • Full method service performed to manufacturer and code standard
  • Verification test on completion
  • Workmanship warranty in writing
  • Not included: Interior finish repair (drywall, paint) where prior water damage already exists
  • Not included: Structural rebuild work discovered during inspection (quoted separately)
  • Not included: Third-party roof or scaffold access on unusually steep or unsafe roofs
  • Not included: Parts on obsolete or discontinued appliances that must be special-ordered

One case that explains the method

A Cambridge homeowner called about a draft problem that turned out to be a kitchen exhaust fan overpowering the flue. No repair was needed at all; the answer was a make-up air adjustment and a change in how the appliance was started.

We include cases like this because the pattern repeats. The expensive outcomes in Cambridge are almost never caused by a difficult repair — they are caused by a correct repair applied to the wrong diagnosis.

The standards behind the work in Cambridge

Work in Halton is governed by provincial code and national standards, and insurers increasingly ask for proof that both were followed. Documentation is not paperwork for its own sake — it is what turns a denied claim into a paid one.

  • WETT certification standards for wood-burning system inspection
  • CSA B149.1 where a gas appliance shares the venting system
  • NFPA 211 levels of inspection as the reference for scope and reporting
  • Manufacturer installation instructions, which the code treats as binding
  • Local municipal permit thresholds, which differ across the region
  • CSA B365 for solid-fuel burning appliances

DIY versus professional gas line & b-vent conversion in Cambridge

There is real DIY territory here: clearing an accessible exterior vent hood, keeping the roofline clear of debris, watching for staining after heavy rain, and photographing anything that changes. That work is genuinely useful and costs nothing.

The hazard is confidence without measurement. Airflow, draft and liner integrity are all numbers, and none of them can be estimated by eye — which is why a clean-looking system can still be unsafe.

Do the outside work you can reach safely, keep dated photos, and buy one certified inspection a year. That combination catches almost everything worth catching.

Documentation, quotes and next steps

Everything from the visit is documented and sent to you: images, findings, and a plain-language ranking of what needs attention now versus what can wait a season. Quotes are fixed and time-limited, not open-ended.

Where the honest answer is "stop using the appliance until this is corrected," we say it — and we would rather say it than sell you something adjacent to the problem.

We run the same method in neighbouring markets — Gas Line & B-Vent Conversion in Scugog, Gas Line & B-Vent Conversion in Vaughan, Gas Line & B-Vent Conversion in Uxbridge.

FAQ

Gas Conversion in Cambridge — common questions

Can I convert my wood fireplace to gas?+

Almost always. The deciding factors are gas line access to the hearth and whether the existing flue can take a listed B-vent liner.

What does a wood-to-gas conversion cost in the GTA?+

Line, install, and venting run $890–$3,400 excluding the appliance. Long gas line runs and finished-basement routing are the main cost drivers.

Is a vent-free gas log set legal in Ontario?+

No. Vent-free gas fireplace products are not approved for installation in Ontario. Every gas appliance must be vented.

Other services

Other services in Cambridge

Book now

Book Gas Conversion in Cambridge

Free written quotes. Same-week booking across the GTA.

(437) 475-3344
Free · 60 seconds

Quote in 3 quick taps.

Service · urgency · contact. A chimney expert replies in under 15 minutes.

  • Fixed-price written quote
  • No spam, no sales calls
  • WETT & CSIA certified
Keep exploring

Related cities & services

Call Text