Waterproofing that protects chimney brick in Riverside Park
A free inspection of the faces, joints, top and roof junction before any treatment is priced.
- Owned and run locally
- Available for same-day service
- Fully licensed and insured
- Family owned and run
When chimney masonry may need a repellent in Riverside Park
- Flaking or crumbling brick faces
- Glossy patches from an earlier coating
- Rain no longer beading on treated brick
- Water beading on one face but not another
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What goes into treating chimney brick
Keeping the surface dry afterward
Once applied, a repellent needs a period without rain to set up properly. The product data states how long. Rain too soon can reduce the treatment's effect and leave uneven results.
We plan application for a dry window in the forecast. If rain arrives unexpectedly, we tell you what was affected and whether any area needs another pass. Glass or other surfaces touched by spray are cleaned within the time the product allows, while the residue can still be removed.
Finishes that go on before treatment
Product data warns that some cementitious finishes, plaster and stucco may not bond well to a treated surface. If any such finish is planned for the chimney, it should go on first and be allowed to cure.
Tell us about any plans for patching, parging or refinishing. We sequence the work so the repellent comes last. If a repair uses a cement-based product, we allow for its cure before treatment. The estimate shows that order, so no step works against another.
What the word sealer can hide
Products sold as chimney sealers vary widely. Some are breathable penetrating repellents. Others form a film on the surface. Preservation guidance notes that repellents are often wrongly called sealers, which adds to the confusion.
Read the product data, not the front of the can. It should say whether the product penetrates or forms a film, which surfaces it suits and whether it lets vapor pass. We explain the product we propose in those terms, so you know exactly what kind of treatment is going on your chimney.
Brick damaged by past cleaning
Sandblasting or high-pressure washing can strip the hard outer face from brick and erode mortar. Masonry cleaned that way absorbs more water and weathers faster. It may look sound from the ground and still be vulnerable.
Tell us if you know how the chimney was cleaned in the past. We look at the faces for rounded edges and open texture. If the surface has been damaged, treatment may help, but it has to be chosen carefully and tested. We explain what we see and what can be expected.
Your free waterproofing inspection covers
- Masonry type identified on each face
- Mortar joints checked for gaps and softness
- Nearby vents and intakes covered
- Renewal check on a later maintenance visit
What people ask before sealing a chimney
How do I know if my chimney needs waterproofing at all?
Watch the brick after rain. Faces that darken and stay dark long after the rest has dried are absorbing more water than they should. The free inspection checks that, along with the joints, top and flashing, and we tell you if treatment is not worth it.
Will the treatment change how my chimney looks?
A suitable penetrating repellent is usually close to invisible once dry. Some products darken certain brick slightly, and film formers can leave a sheen. The test area lets you judge the look first, and if you dislike it, we discuss another product or no treatment.
Can you treat a chimney that has been painted?
A clear repellent cannot reach the pores through paint, so it would do little. The choice is between caring for the paint and removing it, and removal carries its own risks for the brick face. We explain both before recommending either.
More Ways to Care for Your Fireplace
- Hurricane and Storm Damage Chimney RepairAssess storm-related chimney concerns and distinguish temporary protection from permanent component repair.
- Chimney Animal RemovalAssess occupied chimney openings and plan appropriate follow-up cleaning or entry protection.
- Spalling Brick Repair and Chimney Brick ReplacementReplace deteriorated chimney bricks while retaining suitable surrounding masonry.
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Local service. Careful repairs. A fireplace worth coming home to.
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Chimney & Fireplace Brands We Work With
DuraVent 
Olympia Chimney and Venting 
Copperfield Chimney Supply 
Rutland 
Heatilator 
Heat & Glo