Serving You For Over 46 Years!

Tuesday - Saturday: 10:00am - 5:00pm
Sunday: 11:00am - 4:00pm  
San Francisco’s Trusted Chimney Sweep Since 1977!

San Francisco’s Leading Chimney Service Company & Fireplace Showroom For Over 46 Years! We are the preferred choice!

Protect Your Chimney From The Costly Effects Of Water!

Most people think that their chimney’s biggest enemy when it comes to causing damage is fire. While a chimney fire is a devastating event, it doesn’t hold a candle to your chimney’s real foe: water. Whether in the form of humidity or precipitation, water can do a number on your masonry chimney and has to be contended with on a daily basis. Luckily, at London Chimney Services, we know just how to protect your chimney from this ever-present threat!


Keeping water out of your chimney is one of the most critical preventive measures you can take as a chimney owner. When water gets into the masonry structure of your chimney, it can cause several problems:

Mold Growth:
With water comes mold and mildew. When water gets into cracks in your masonry or into the interior of your chimney, it can settle and allow mold and mildew to grow. This can leave an unpleasant odor in your fireplace that will only get worse over time. Eventually, this smell will invade your home!

Masonry Damage:
Water erosion is a powerful force — it is what created the Grand Canyon! This same force can exact a toll on your brick and mortar. Over time, it can eat away at the masonry, causing bricks to crack and crumble and the mortar to fall off of the chimney. If left unchecked, this could lead to serious structural problems!

Ceiling Leaks:
Most people call a roofer when they find they have water coming from their ceiling, but oftentimes, the real problem is the chimney! If water is allowed to seep into the masonry of your chimney, it can find its way through your house until it reaches a point of exit, oftentimes, the ceiling!

How Do I Waterproof My Chimney?

Waterproofing a chimney is similar to sealing a driveway, but it has some key differences — the most important of which is the type of sealant used. If a sealant that does not allow for moisture to escape is applied to your masonry chimney, you could be trapping water inside of your chimney, which is counterproductive. Proper chimney sealant prevents water from getting into the masonry, while still allowing it to breathe so that moisture can escape. It is best to have this performed by a certified chimney sweep so that you can be sure that your chimney is properly waterproofed.

Call Us Today!

If you are having issues with water damage or are unsure if your chimney has been properly protected against water, give London Chimney Services a call today. Prefer to request an appointment online? Click here!


Don’t burn a fire in your fireplace if you have a broken chimney damper. Let us make this chimney repair so your fireplace system is safe to use.



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(415) 380-0330

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(415) 380-0336


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Certifications & Associations

Certified Chimney Sweep     National Fireplace Institute Certified
Golden State Chimney Sweep Guild   Contractors State License Board
US Environmental Protection Agency
Hearth, Patio, and Barbecue Association

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"... fast working, efficient, professional and pleasant to deal with."
~ S. Reiter, Mill Valley

“Very prompt, explained what needed to be done – showed pictures. Very thorough. Clean. Nice people to work with.”
~ J. Sinnott, San Francisco

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Service Products

       Chimney Inspection Camera System Bernard Dalsin Manufacturing National Chimney is a leading manufacturer of chimney liners, liner kits, caps, chase covers DuraVent is a recognized technological leader in the chimney venting industry. Help draft wood burning fireplaces & woodstoves, gas log fireplaces, pellet stoves, with vent fans CHAMBER-TECH 2000 is the answer to those rough, deteriorated, uninsulated and improperly formed smoke chambers Smoktite is a highly insulative ceramic product that is used to seal, smooth and insulate chimney smoke chambers without removing the damper frame or adjacent brickwork HeatShield® is a chimney liner repair system that eliminates the hazards and draft problems caused by gaps, cracks and spalling in otherwise sound masonry chimneys. Superior Clay Corporation produces and designs components for masonry fireplaces in a complete range of styles and sizes. Flexible, scalable and custom solutions offer high performance and efficiency without sacrificing on indoor air quality.

Hearth Products

      fireplace x Lopi European Home element4 Regency Fireplace Hearthstone Stoves Hargrove Gas Logs American Fyre Designs Portland Willamette Pilgrim Hearth Majestic Fireplaces DaVinci Custom Fireplaces Travis Industries The House of Fire Tempest Torch Outdoor Gas Lamps adn Lighting