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Renton & South King County, WA

Chimney Sweep in South King County, WA

A chimney sweep in Renton brushes a season of soot and creosote out of the flue, then hands you photographs of the cleaned walls so their condition is yours to judge.

Our price

$189–$459

  • $189–$459 — what we charge for chimney sweep
  • $99 plus tax on-site inspection, credited toward an approved quote
  • Written quote before any work starts — photos of every job
  • Local crews
  • Licensed & insured
  • Documented work
  • Written quote first

Book an inspection

Book your $99 inspection

$99 plus tax, deducted when you approve the repair

Service
Town

Book your $99 inspection

Pick a real open slot on our crew's calendar — takes about a minute.

  • No payment to book
  • Written on-site quote
  • Photos of every job
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Chimney Sweep in Renton

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October 2026
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What's going on with your chimney?

Pick what you're seeing — we'll point you to the right fix.

What we do

Our services

Sweeping, inspection, relining and masonry — one local crew for the whole chimney.

Ranges shown for orientation — the exact figure is written up on-site, after the inspection.

What chimney sweep actually involves

Fires follow the rain in southeast King County. WeatherSpark models Renton's wetter season at about 6.8 months, October 9 to May 2, and stretches it to May 17 in Maple Valley and May 31 in Snoqualmie, so a stove near the foothills works several weeks longer than a fireplace close to Lake Washington. Each of those fires leaves a film inside the flue. Our crew picks a brush that suits the liner, keeps a HEPA vacuum pulling at the firebox for the whole job, and ends with a Level 1 look at everything within reach.

Wood as a main heat source is rare inside the four cities we serve: Census estimates show few homes relying on it in Renton, Newcastle, Snoqualmie or Maple Valley, and the margins of error are wide. It is noticeably more common on rural lots around Hobart, outside Maple Valley. A stove that carries the house from October into May loads a flue far faster than an occasional evening fire, so those chimneys are the ones we suggest sweeping on a fixed yearly date.

What's included

  • The flue brushed along its full height with heads chosen for its shape and material
  • Drop cloths at the hearth and a HEPA vacuum drawing air into the firebox while the brushes work
  • Smoke chamber, smoke shelf and damper cleared of what the brushing knocks down
  • A Level 1 check of the reachable parts, folded into the same appointment
  • Flue pictures taken ahead of the first pass and again when the last one is done

Why it matters

Drawing on U.S. Fire Administration data, the Washington State Fire Marshal's September 21, 2026 release traces 77% of the heating fires that struck residential buildings in 2024 to chimneys, flues or fuel burners. The same release tells homeowners to bring in a professional annually to inspect and clean both fireplace and chimney. Sweeping is the part of that sentence that removes what burns.

How much buildup is too much? For a masonry fireplace, the Chimney Safety Institute of America sets the threshold at 1/8 inch of sooty deposit, and earlier if any glaze has formed. Past that point the coating is both fuel and obstruction: it can catch, and it narrows the path smoke needs. State air rules add a second reason to keep the flue clear. At any time of year, chimney smoke is capped at 20 percent opacity, a limit broken by six straight minutes above it inside any hour, and nothing may be burned except seasoned dry wood or manufactured logs. A hot fire of dry wood under a swept flue is the simplest way to meet that standard.

How it works

What to expect with chimney sweep

  1. 1

    Protect the room

    Cloths cover hearth and floor, and suction is on before a single brush goes in.

  2. 2

    Choose the direction

    Roof pitch, cap type and the appliance decide whether we brush downward from the top or upward from the firebox.

  3. 3

    Brush and collect

    Deposits come off the liner and travel straight into the sealed vacuum.

  4. 4

    Look at clean walls

    With the soot gone, tile joints, glaze patches and cracks can be seen and photographed.

  5. 5

    Talk it through

    You see the pictures, hear what they mean, and get a written quote only when something needs repair.

  • Licensed& insured Washington chimney contractor

  • 4 communitiesRenton, Newcastle, Snoqualmie and Maple Valley

  • $99 plus taxInspection, credited toward an approved quote

  • Every jobDocumented with before-and-after photos

Signs you may need chimney sweep

If any of these sound familiar, book the $99 plus tax inspection — credited toward the work if you approve the quote:

  • A sour, smoky odor at the hearth when the weather turns wet
  • Dark crumbs dropping onto the grate between fires
  • Smoke that curls into the room each time the doors open
  • Soot on the damper thick enough to leave a groove under a fingernail
  • A whole wet season of fires since the last brushing

By town

Chimney Sweep in your town

The 4 South King County communities we serve. Pick yours for local scheduling and the chimney issues we see there.

Before and after

What the work changes

Illustrations of what each repair changes on a typical chimney — not photos of a specific job.

A Renton Chimney Pros technician pointing toward the four steps of a visit

From booking to done

Four steps, each one on paper — so you always know what happens next.

  1. 1

    Book online

    Choose a genuine opening on the crew's calendar. Confirmation is immediate.

  2. 2

    On-site inspection

    Liner, crown, cap, flashing and masonry examined in order — each finding photographed.

  3. 3

    Written quote

    One document, plain numbers, covering only the work your chimney genuinely needs.

  4. 4

    Work done & documented

    The repair is completed, then handed over with before-and-after photos of every item.

Before you let anyone in

What you can verify about us

Every fact below is one you can check yourself before we ever set foot on your roof.

  • Licensed& insured Washington chimney contractor

  • 4 communitiesRenton, Newcastle, Snoqualmie and Maple Valley

  • $99 plus taxInspection, credited toward an approved quote

  • Every jobDocumented with before-and-after photos

The Renton Chimney Pros service van in the driveway of a Renton home

Serving Renton, Newcastle, Snoqualmie & Maple Valley

Chimney Sweep — common questions

Which months work best for a chimney sweep in Renton?

Summer and early fall. By WeatherSpark's dates, Renton's clearer part of the year begins around June 15 and holds until about October 8. The roof is dry, and whatever the sweep uncovers can be repaired before the wet season opens.

How much do you charge for a sweep?

Our sweep is $189–$459 with the Level 1 check included. Roof steepness, chimney height, hard access and the weight of the deposit move a job up that range, and you hear the figure before we start.

May I light the fireplace during a burn ban?

Not a wood-burning one. Once the Puget Sound Clean Air Agency announces Stage 1, a wood fireplace has to stay unlit, as does any uncertified stove or insert; Stage 2 adds certified stoves, certified inserts and pellet stoves. A household is excused only if wood is its single adequate way to heat and the agency granted an exemption before the ban.

Will soot end up on my carpet?

It should not. The firebox opening is sealed off with cloths, suction runs from start to finish, and the debris rides out of the house inside the vacuum. Cloths come up only after the last pass.

We light a fire maybe five times a winter. Is sweeping still needed?

Maybe not every year, but the look is. NFPA 211, as CSIA quotes it, calls for a yearly inspection regardless of use. The inspection tells you whether the 1/8 inch mark has been reached or glaze has appeared; if neither has, we say so and leave the brushes in the van.

See chimney sweep pricing in detailMore chimney questions

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Book an inspection

Often booked alongside chimney sweep

Chimney Sweep and related prices in Renton — published rates, 2026
ServicePrice in RentonWhat that covers
Chimney Sweep$189–$459Full flue swept, Level 1 inspection included
Creosote RemovalFrom $245Priced by creosote stage — glazed stage 3 is the heavy end
Chimney Inspection$99 plus taxLevel 1 visual; Level 2 adds a full camera scan
Chimney ReliningFrom $1,900Full-length stainless liner, sized to the appliance

Ranges are what these jobs are quoted at in Renton. The exact figure is set on site after a $99 inspection (credited toward the job if you go ahead), and you approve it before any work starts.

Ready to book your chimney sweep?

Licensed local crews, a $99 on-site inspection credited toward repairs, and a written quote before any work. Book a real open slot on our calendar.

Call (425) 979-2035Book