
Instructions
- Remove the Loose Mortar. Remove the fire grate from the fireplace and use a fireplace brush and dustpan to sweep out the firebox.
- Clean the Mortar Joints. Clean out the mortar joints by sucking out the debris with the shop vacuum or blowing it out with a can of compressed air.
- Fill the Joints With Caulk. ...
- Smooth the Caulked Joints. ...
- Cure the Caulk. ...
Does your firebox need a rebuild?
Your chimney system includes the fireplace, smoke chamber, flue, and more. The entire system, particularly the firebox, endures abuse throughout burn season. Unbeknownst to the homeowner, the firebox may need a rebuild. Let us inform you about firebox problems and potential solutions!
Does your firebox need repair?
Second, it is the most visible part of the system, often the focal point of the the entire house. Over time the firebox becomes damaged through general use, and even a well-constructed firebox will require repair in order to stay safe and work properly. The firebox is constructed of masonry that should be rated for high heat.
How to repair gaps around firebox?
- Over a decade’s worth of experience
- Fully certified, licensed, and insured technicians
- 100% satisfaction guarantee
- Full-service chimney cleaning, inspection, and repairs
- Dryer vent inspection and cleaning
- Accurate diagnostics
- Free estimates
- Financing options
How to repair a firebox made with Prefab?
- A fireplace insert is way less expensive than a fireplace repair
- A fireplace insert burns more efficiently than the traditional fireplace
- A fireplace insert will allow the heat to stay inside your home rather than going up the chimney
- Since your fireplace will add heat, then your heating bills will be reduced

How much does it cost to repair a firebox?
Firebox Repair Cost Fixing a firebox costs $160 to $750. A stone firebox that needs rebuilding can cost upwards of $1,500 or $2,500.
Can you repair the inside of a fireplace?
Refractory caulk, also known as fireplace mortar, is suitable for minor repairs only. If your fireplace has broken or crumbling bricks, large gaps in the mortar, or missing mortar, have a professional mason or fireplace contractor inspect it.
How do you repair a metal firebox?
0:243:21how to fix firebox crack, cracked fireplace, fireplace repair - YouTubeYouTubeStart of suggested clipEnd of suggested clipStore just a heads up all right so we've got this vacuumed out but it says that we need to wipe itMoreStore just a heads up all right so we've got this vacuumed out but it says that we need to wipe it with a wet sponge. So we're just gonna kind of get all the dust off of it.
How much does it cost to replace the inside of a fireplace?
The national cost average to repair a fireplace is between $200 and $1,000. Most homeowners pay around $600 to repoint a damaged section of a brick fireplace....Cost to Repair a Fireplace by Type of Repair.TypeAverage Costs (Labor Included)Hearth$150 - $800Mantel$150 - $1,000Mortar$200 - $900Chimney$250 - $1,2005 more rows•Sep 13, 2021
Can a cracked firebox be repaired?
Repairing Firebox Cracks Depending on the damage, a professional chimney repair contractor may fill in the gaps with refractory caulk to seal them. Some repairs require tuckpointing or replacing loose bricks, which technicians with the training and experience should handle to do these repairs accurately.
Can you use regular mortar in a fireplace?
Domestic Fireplace Mortar is a premixed and ready to use regular mortar. It was developed for installation of firebrick in masonry fireplace installations. It also has many other uses such as in chimneys, boilers, incinerators, furnaces, kilns, etc.
What is fire cement?
Fire Cement is a ready-to-use putty which is heat resistant up to 1250oc. There are a number of manufacturers and brands and it's available in different sizes in both black and cream. The cement can be used to seal joints in wood stoves, especially around the area where the flue rises out of the top of the stove.
How do I repair a rusty fireplace?
Pour some distilled white vinegar in a bowl and dampen a cloth in the vinegar. Scrub the rusty areas with the cloth, then dip a steel wool pad in the vinegar and scrub them again. Alternate the cloth with the steel wool until the rust is gone.
What kind of paint do you use on a firebox?
The black color is the most popular color choice and also the most sleek. It does a great job of hiding a lot of the mess in a firebox. If you're looking for a sure bet, go with Black Firebox Paint.
How do you repair a wood fireplace?
0:563:39Firebox Repairs - YouTubeYouTubeStart of suggested clipEnd of suggested clipAnd round the mortar joints back to about a half of an inch to an inch. The new moist. And weMoreAnd round the mortar joints back to about a half of an inch to an inch. The new moist. And we moisten all the mortar joints. So you get a good bond. And then basically use high-temperature cement.
How much does it cost to replace wood-burning fireplace?
Wood stove installation costs between $3,000 to $4,000 on average, not counting the price of the stove, and costs will vary depending on the height of the stovepipe and whether a flue can be updated or must be newly installed.
How much does it cost to Rebrick a fireplace?
Depending on which you choose and its variety of wood, your fireplace refacing supplies can range from less than $1 per foot of board for common 1″-thick pine to over $12 per foot of board for mahogany, walnut, and more exotic hardwoods.
How do you replace a brick fireplace liner?
0:192:44Renegade Brick Liner Installation - YouTubeYouTubeStart of suggested clipEnd of suggested clipStep 1 install the two floor pieces in the slot at the front of the fireplace. Place the short pieceMoreStep 1 install the two floor pieces in the slot at the front of the fireplace. Place the short piece to the left and the longer piece to the right.
How do you fix an old fireplace?
5:209:22How to Restore a Historic Fireplace | Ask This Old House - YouTubeYouTubeStart of suggested clipEnd of suggested clipTogether really knew what he was. Doing. So bob one of the big problems that we have when we'reMoreTogether really knew what he was. Doing. So bob one of the big problems that we have when we're trying to restore a fireplace like this is the joints.
How do you repair a brick fireplace?
3:086:16How to Repair a Damaged Fireplace Brick | Ask This Old House - YouTubeYouTubeStart of suggested clipEnd of suggested clipBecause mortar doesn't stick to mortar very well but it sticks to brick. So we want to make a goodMoreBecause mortar doesn't stick to mortar very well but it sticks to brick. So we want to make a good spot for the brick delay.
How do you fix a crack in a stone fireplace?
1:323:07How To Fix Cracked Mortar or Concrete in a Fireplace with Mor-flexxYouTubeStart of suggested clipEnd of suggested clipAnd recess the backer rod three-eighths of an inch to half an inch below the surface cut the nozzleMoreAnd recess the backer rod three-eighths of an inch to half an inch below the surface cut the nozzle to the bead size you need and load the caulking gun gun more flex into the joint.
What is firebox repair?
Fireplace firebox repair and replacement is a basic maintenance action performed by chimney technicians or sweeps. We’ve seen what the firebox is and how common issues are resolved.
What happens if you replace a firebox?
In the case of fireplace firebox replacement, the condition of the firebox is mostly damaged beyond repair.
What is a firebox?
A firebox is a basic addition or component of a fireplace where combustion occurs. In other words, it’s the place where the fire actually burns. Fireplace fireboxes are built to withstand a lot of heat. Materials used include heat/fire-resistant bricks or metal.
Why replace a firebox in a fireplace?
The most common reason for fireplace firebox replacement is to remedy irreparable damage to a firebox.
What are the problems with DIY alternatives?
Another problem you might face with the DIY alternative is the likelihood of making mistakes during repair, installation, or replacement.
How many types of fixes are generally administered?
Two types of fixes are generally administered.
Why do we need immediate fixes?
Immediate fixes need to be made to avoid or prevent further deterioration.
How long does it take for fireclay to dry?
Generally, this time is around 48 hours but it may vary depending on the type of repairs.
Can a fireplace firebox be repaired?
Apart from a number of other maintenance checks that you will have to perform, you might find yourself in need to repairing the fireplace firebox. The task is very easy if approached in the right manner. Since all you have to do will be a little cleaning and to seal a few cracks, a fireplace firebox can be repaired very quickly.
How to tell if a firebox is still available?
Contact the firebox manufacturer and confirm if the model is still available. Alternatively, find a store that sells fireplace units and chat up the owner or manager. Sometimes, the model number changes only because of updated model colors or some other cosmetic reason while the basic model remains the same; only further inquiry can reveal this.
Is it safe to replace a UL panel?
Repairing cracks voids the UL listing and manufacturer’s warranties. Replacing panels, even for cracks, is still the best and safest option.
Causes of Firebox Cracks & Damage
Builders use firebricks and refractory mortar to construct modern fireboxes because these materials withstand extreme temperatures better than standard bricks or stone.
How Serious is Firebox Damage?
A well-constructed fireplace and chimney have fire-resistant layers and a flue liner to protect the combustible materials around the firebox and behind the fireplace from catching fire.
What About Prefabricated Fireboxes?
Many builders prefer manufactured fireplaces in new home construction because they’re more cost-effective than masonry fireplaces.
Repairing Firebox Cracks
It’s understandable to want to save money on home repairs, but professionals should perform some fixes, and that includes firebox repair.
About Fluesbrothers Chimney & Fireplace
We’re a full-service chimney service company serving residents throughout the Kansas City metro area for over a decade.
What is the firebox in a fireplace?
While a fireplace is a source of beauty and warmth in the cold weather, the heat generated from a fire will take its toll on the fireplace over time. The fireplace interior where the fire occurs is called the firebox. It is made up of firebricks and mortar, which are designed to withstand high heat.
How long does it take for refractory caulk to dry?
Refractory caulk usually cures fully after exposure to fire for one hour.
How to fill gaps in caulking?
Insert the caulk into the caulking gun, and cut the tip of the caulk tube as directed by the manufacturer. Slowly force the caulk into the gaps, filling them as deeply as possible. On vertical joints, working from the bottom up can help you visually confirm the degree of joint penetration by the caulk.
Can you repair a firebox with refractory caulk?
Significant damage in a firebox can be a serious fire hazard and should not be repaired with refractory caulk. Before & After: 10 Fireplace Makeovers You Need to See.
