Surrey · England
Fire-rated sealant in Coldharbour, Surrey
Problem with your fire-stopping gaps in Coldharbour? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Sealant items on a fire risk assessment action list
- Gaps filled with a product that isn’t fire-rated
- Gaps left after a refit or conversion
Common problems we fix in Coldharbour
Sometimes the wrong product was used from the start: ordinary expanding foam, standard silicone or decorators’ caulk where a fire-rated seal was needed. It looks sealed, but it isn’t fire-rated.
These are the problems we’re asked about most:
- Gaps left after a refit or conversion
- Open holes round services passing through fire walls
- Unsealed gaps around fire door frames
- Damaged fire sealant left by other trades
Rented homes near Holmwood station change hands often, and fire-rated sealant around pipes and cables through walls and floors needs making good whenever new services go through.
Questions to ask before you book
- Is the old sealant removed completely?
- What happens if the job turns out different
- The length of the guarantee
- What insurance they hold
About our fire rated sealant in Coldharbour
Landlords, managing agents and facilities teams use us for the sealant items on a fire risk assessment on buildings across Coldharbour. If you share the list, we can quote for the gaps that need fire-rated sealant. We work on door frames, flats & HMOs and linear gaps, and people most often call us about unsealed gaps where pipes and cables go through a wall and cracked or shrunken fire-rated sealant.
Somewhere as small as Coldharbour, commercial jobs tend to be pubs, holiday lets, farm buildings or halls rather than offices. They all have washrooms, kitchens and service openings that need the right sealant.
Each job carries a 12-month guarantee, whatever its size.
- Where
- Coldharbour (RH5)
- Wider area
- Surrey
- Cover
- 12 months on all our work
- Quote
- A clear price before we start
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
How the visit works
At the end, we look at the finished work together. The work normally takes from a few hours to a few days, depending on the number of gaps and the access, depending on the size of the job. Somewhere like Coldharbour needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- First we work through your list or survey, measuring each gap and checking what it’s formed in.
- Old or unsuitable sealant is cut out and the gap cleaned.
- Backing or fill is fitted where the product’s tested detail calls for it.
- The sealant goes in to the depth its detail sets, then it’s tooled off.
- We record the locations and products used for your records.
How to prepare
- Move anything stored near the joints
- Let us know about earlier repairs to the joints
- Where the joints are inside, avoid wetting them before we arrive
Getting a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job. When it suits you, phone 0345 464 0079 or drop us an email.
Read more
Quotes for fire rated sealant in Coldharbour
The quote reflects the job in front of us. We look at:
- Mould in or behind the old joints
- How many areas need sealing
- Whether old sealant or filler has to be cut out
- Whether the work is at height
Combining jobs into one visit is normally more efficient than separate visits, so tell us about everything that needs sealing. We’ll give you a clear price for the lot.
What to tell us for a quote
Before you ask for a quote, have a think about:
- The rough size of the job
- What’s wrong with the joints now
- Whether it has been sealed before
- Photos by email, if that’s easy
Call for a quick quote, or email us if that is easier. Describe what needs sealing and we will explain what’s involved and give you a clear price.
Leave it or put it right?
Paying for fire stopping that has to be redone is a false economy. If the details weren’t followed, the seal may need redoing when the building is next checked. Older cottages and farmhouses around Coldharbour can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
What it costs depends on how much there is to do, how much old material has to come out and how easy the joints are to reach. We give a clear quote before any work starts.
Why choose Mr Mastic in Coldharbour
- Every job guaranteed for a year
- Over 20 years’ experience
- We leave the area clean and tidy
- Full insurance on every job
Read what affects the cost and customer reviews.
Looking after it afterwards
Simple care keeps the joints in good condition. Our advice:
- Ask every contractor to reseal any fire stopping they disturb
- Get damaged fire seals looked at promptly
- Store the list of sealed gaps with your building paperwork
- Ask which product was used before you paint
Keep the record we give you with the building’s fire safety documents. It helps whoever checks the building next.
It’s easiest to seal gaps while they’re few and easy to reach. Over time, more work adds more holes.
Places near Coldharbour
Also in Coldharbour
Questions from Coldharbour
Can you do fire rated sealant in Coldharbour?
Yes. Our work covers London and the South East, and Coldharbour is part of that. Just ring 0345 464 0079 or send us an email with a few details of the job, and we’ll send you a clear quote.
Do you cover smaller places like Coldharbour?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Will we have a record of what was sealed?
Yes. Locations and products are written up when we finish. If you need photos or a set layout, ask when you get a quote.
What does fire rated sealant cost?
Size, access and the old material all affect the cost. Call for a quick quote and we’ll talk you through it.
Are you insured?
Yes. We are fully insured.
Will you leave a mess?
We keep the work tidy. Nearby surfaces are protected, and we clear up when we are done.
Do you take out the old sealant first?
Yes. We cut out all the old sealant and clean the joint before applying anything new.
Do you offer different sealant colours?
Usually, yes. Sealants come in white, clear, grey and other colours, and we agree the colour with you before any work starts.
For landlords and businesses
Letting agents often deal with us directly. Tell us the address, the job and how access works.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Fire rated sealant around Coldharbour
In England, the Regulatory Reform (Fire Safety) Order 2005 requires a fire risk assessment for workplaces and for the common parts of blocks of flats, and gaps around services are often picked up there. We apply fire-rated sealant to the assessor’s or designer’s specification and the product’s tested details.
For buildings such as Christ Church, older buildings that have had new heating or wiring often have service gaps worth checking.
Coldharbour is about 4 miles south of Dorking, in Surrey. Whether you are in the middle of Coldharbour or further out, we cover fire rated sealant for every kind of property, from flats and houses to offices and hotels. Across Surrey, we cover 395 places, and Coldharbour is one of them. You can also see our page for Crawley, roughly 9 miles from Coldharbour.
Jobs for fire rated sealant in RH5 is quoted and booked the same way as anywhere else. If you are just outside Coldharbour, we cover Abinger Bottom (2 miles north-west), South Holmwood (2 miles north-east), Holmwood Corner (2 miles east), Friday Street (2 miles north-west) and Beare Green (2 miles east). We also work in nearby towns such as Guildford (10 miles north-west), Woking (13 miles north-west), Epsom (11 miles north), Horley (8 miles east), Redhill (9 miles north-east) and Ewell (13 miles north).
Landmarks near Coldharbour
Typical jobs here are in homes near Wotton and Abinger Commons and Plough Inn, among other places. For rail, the closest station is Holmwood station, roughly 1.6 miles east. Other landmarks nearby include Mesolithic Museum (2.6 miles north-west) and Abinger Castle (2.6 miles north-west). The countryside around Coldharbour includes Vann Lake and Leith Hill.
DIY versus a professional finish
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.