Denver Chimney & MasonryS Jason St · Denver · 24/7 (720) 685-6889
24/7 · central Denver

Old Denver Chimneys,Done RightChimney repair, relining and masonry for Victorians, Denver Squares and bungalows across the city

Denver's older neighborhoods were built with soft local brick and fireplaces designed to burn coal. Over a century later, those chimneys often have no liner, crumbling joints and tiny fireboxes that smoke when you try to burn wood. We restore them, convert them, or take them down safely during a remodel, and someone at Denver Chimney & Masonry picks up whatever the hour.

1880s–1940shomes are our specialty
80223S Jason St shop
Any houra person answers
Mason repairing the top of an old brick chimney on a Denver Victorian
Brick chimney · Capitol Hill

Tap a story

Mason repointing joints in century-old Denver brick
Typical central-Denver chimney100+ years old
Original linerOften none at all
Victorians, Squares & bungalows

What century-old Denver chimneys need

Gentle mortar for soft brick

Early Denver brick is soft and porous. Repointing with hard modern mortar damages it, so we use softer lime-rich mixes.

A liner where there isn't one

Many chimneys from this era were built without flue tiles. A stainless or cast-in-place liner makes them usable again.

Decorative tops kept intact

Stepped and patterned brick crowns are relaid one row at a time so the street view stays the same.

Historic district review

Exterior work in Denver's landmark districts may need design review. We help with photos and specs.

Live in an older home?(720) 685-6889
Our services

Chimney work for Denver's oldest neighborhoods

And for newer homes too, from Baker cottages to Park Hill Tudors and Sloan's Lake rebuilds.

Mason laying soft brick in mortar on a Baker neighborhood chimneyHistoric brick

Historic Chimney Restoration

Repointing, matched brick replacement and decorative-top rebuilds with materials that suit century-old masonry.

  • Lime-rich repointing mortar
  • Salvaged brick matches
  • Corbel and top rebuilds
Restore my chimney (720) 685-6889
Technician inspecting a small coal-era fireplace in a Denver homeCoal era

Coal Fireplace Conversions

Small, shallow coal fireboxes rarely burn wood well. We fit gas logs or a compact insert, with a liner sized to match.

  • Gas coal baskets and logs
  • Compact inserts
  • Matching liners
Convert my fireplace (720) 685-6889
Stainless liner being lowered into an unlined chimney in the HighlandsSafe flue

Relining

Stainless or cast-in-place liners for unlined and cracked flues, for fireplaces, furnaces, boilers and water heaters.

  • Stainless liners
  • Cast-in-place systems
  • Boiler and furnace flues
Ask about relining (720) 685-6889
Chimney top with a cap on a Washington Park homeRemodels

Chimney Removal

Opening a kitchen or adding a second story? We take chimneys down safely, inside or above the roof, and coordinate with your contractor.

  • Full or partial removal
  • Debris haul-away
  • Roof patch and capping
Plan a removal (720) 685-6889
Chimney sweep working on a Platt Park roofClean & scan

Sweeping & Inspections

Flue cleaning, camera inspections and reports for buyers and sellers in Denver's busy housing market.

  • Wood-burning fireplaces and stoves
  • Camera footage of the flue
  • Home purchase inspections
Book a sweep (720) 685-6889
Chimney technician on a Park Hill rooftopAround the clock

24/7 Emergencies

Bricks coming loose up top, a smoky room, an alarm pointing to the flue or melt water inside: we take those calls overnight too.

  • Nights and holidays
  • Securing loose brick
  • Temporary caps and tarps
Call now (720) 685-6889
Small fireplace, big smoke?

Is your fireplace really a coal fireplace?

Many Denver homes from the 1880s to the 1920s were heated by coal. Their fireplaces look charming but were built for a small basket of coal, not a stack of logs.

Shallow, narrow firebox

Often only 8–14 inches deep, too shallow for wood to burn cleanly.

Decorative tile or cast-iron surround

Ornate tile, a cast-iron insert or a small arched opening.

Smoke rolls into the room

Log fires push smoke out because the opening and flue were sized for coal.

The fix

A gas coal basket or compact insert keeps the antique look and works safely.

Think you have one?(720) 685-6889
Cleaning a small firebox in a Denver Square home
Built forA coal basket
Best todayGas logs or insert
Remodeling?

How we take a chimney out of an old house

Removing a chimney from a 100-year-old home takes planning. Here's the order we follow.

01 CHECK

What's venting?

We confirm the furnace, boiler or water heater doesn't still need the flue, or plan a new vent.

02 PLAN

Permits & support

We coordinate with your GC on permits, joists and any structural support.

03 REMOVE

Top down, by hand

Brick comes down in sections, with dust control and debris haul-away.

04 CLOSE

Patch & cap

Roof decking and shingles patched, or the remaining stack capped below the roof.

Drop cloths protecting a Denver living room during chimney work
Covered floors
Brush sweeping a flue near Sloan's Lake
Flue sweep
Chimney flashing being sealed in Capitol Hill
Flashing
Installing a chimney cap in Congress Park
New cap
Covered floors
Flue sweep
Flashing
New cap
Tuckpointing a Denver brick chimney
Tuckpointing
Relining an old chimney
Relining
Historic brick repointing
Soft brick
Masonry repair in Baker
Brickwork
Tuckpointing
Relining
Soft brick
Brickwork
Denver neighborhoods

Off I-25 and Santa Fe, minutes from downtown

From S Jason St by the South Platte, we reach Baker, Wash Park, Capitol Hill, the Highlands and Park Hill fast. Pick a neighborhood.

Truck heading toBaker
ETA6 min
SOUTH PLATTE WASH PARK 25 70 6 COLFAX AVE SANTA FE DR S JASON

Pick a neighborhood

Live answer, any hour
Truck leaves S Jason St
Text with ETA
Inspect, explain, repair

Typical drive times from 2209 S Jason St. Rush hour on I-25 or a snowstorm can slow us, and you'll hear a real arrival time on the call.

FAQ

Denver chimney questions

Call anytime: (720) 685-6889.

Is there really someone to talk to at night?

Yes. The line rings through to a person 24/7, holidays included. Loose bricks at the top, smoke inside, or water coming through gets a tech out without waiting for morning.

Will logs work in a fireplace built for coal?

Usually not well. Coal fireboxes are shallow and their flues are small, so wood fires tend to smoke. A gas coal basket, gas logs or a small insert paired with a correctly sized liner works far better.

Our flue was built without tiles. Should we worry?

It can be. Without a liner, heat and flue gases can reach wood framing through gaps in the brick. The NFPA 211 chimney standard expects a liner, and stainless or cast-in-place systems can be installed from the top in most chimneys.

What mortar should go on old Denver brick?

A softer, lime-rich mortar. Hard Portland cement mortar is stiffer than old soft brick, so over the years the old brick spalls instead of the joint.

Can you remove a chimney during our remodel?

Yes. We check that nothing still vents through it, coordinate permits and structural support with your contractor, take it down by hand with dust control, and patch the roof.

Do I need approval for chimney work in a historic district?

Visible exterior changes in Denver's designated landmark districts may need design review. Like-for-like repairs are often simpler. We can prepare photos and specs for the city.

Which neighborhoods do you serve?

All of Denver, including Capitol Hill, Highlands, Washington Park, Baker, Platt Park, Congress Park, Park Hill, Berkeley, Sloan Lake and Ruby Hill, plus Englewood and Lakewood.

Service area

Denver and its first-ring suburbs

Every Denver neighborhood, plus the cities right next door.

  • Capitol Hill
  • Highlands
  • Washington Park
  • Baker
  • Platt Park
  • Congress Park
  • Park Hill
  • Berkeley
  • Sloan Lake
  • Ruby Hill
  • Cherry Creek
  • University
  • Englewood
  • Lakewood

Century-old chimney? We speak its language.

Denver Chimney & Masonry is reachable day and night for restoration, relining, conversions and emergencies.

(720) 685-6889 Call Denver Chimney
Denver Chimney & Masonry 2209 S Jason St, Suite 104
Denver, CO 80223
(720) 685-6889
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24/7 · Denver(720) 685-6889