Surrey · England
Commercial & hotel sealant in Coldharbour, Surrey
We cover Coldharbour for sealant work for offices, hotels, washrooms and commercial buildings. Old material cut out, joints cleaned and sealed neatly and a 12-month guarantee.
- Silicone laid over old silicone by a previous contractor
- Large numbers of bathrooms needing the same work
- Washroom sealant that looks dirty however often it’s cleaned
About our commercial sealant in Coldharbour
In student and care accommodation, there are often many near-identical bathrooms. We agree a programme and work through them in order, working around residents and staff routines. We work on retail & leisure sites, hotel bathrooms and welfare facilities, and people most often call us about rental bathrooms that need resealing between tenants and silicone laid over old silicone by a previous contractor.
In a village or hamlet like Coldharbour, commercial work is more likely to be a pub, a farm shop, holiday lets or a village hall than an office block. They all have washrooms, kitchens and service openings that need the right sealant.
Your job is guaranteed for a year, as with all our work.

- Place
- Coldharbour (RH5)
- Wider area
- Surrey
- Guarantee
- One year on every job
- Quotes
- A clear price before work begins
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
What we do, step by step
Good joint work is mostly preparation, and we don’t rush it. Joints are cleaned back and dried before anything new goes in. All told, the work takes a few hours per room, so whole buildings are phased. In a small place like Coldharbour, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We start by looking at the rooms and agreeing what’s needed.
- Working hours are agreed, including early starts or out-of-hours work where it can be arranged.
- Each area is protected and stripped of old sealant.
- Once dry, every joint is resealed and tooled.
- We let your team know the cure time for every area.
How to prepare
- Where the joints are inside, avoid wetting them before we arrive
- On commercial sites, let us know about site rules
- Let us know about earlier repairs to the joints
Getting a quote
Every job is quoted individually. Just call 0345 464 0079 or drop us an email with the details.
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Places near Coldharbour
Also in Coldharbour
What affects the cost of commercial sealant
There’s no set price list, because jobs vary so much. The quote depends on:
- Any working-time requirements on site
- How many rooms, windows or areas are involved
- The type of sealant required
- The number and length of the joints
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, plus any working-time requirements on site. Ask us for a quote and we will explain what it covers.
What we need to know
To help us quote quickly, please include:
- Any access issues, like height or stairs
- Where the job is, and your postcode
- Whether it’s a home or a business
- The rough size of the job
To get a quote, call 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. You’ll have a clear quote before work begins.
When to call us in Coldharbour
A hotel shower or office washroom is used many times a day, and daily cleaning with strong chemicals wears sealant down. That is why sealant fails sooner.
Signs it’s time to call us include:
- Rental bathrooms that need resealing between tenants
- Split sealant around staff kitchen worktops and sinks
- Silicone laid over old silicone by a previous contractor
- Failed floor-level joints in accessible wet rooms
Letting a property close to Holmwood station? Then we can quote for one property or a whole portfolio of rentals.
Comparing quotes
- What insurance they hold
- How the joint is cleaned and prepared
- When the joint can take water or movement
- Is the old sealant removed completely?
Work for landlords, hotels and businesses
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements.
Housing providers, facilities teams and property managers book us too. Several sites can be quoted together.
Leave it or put it right?
First impressions are often made in the washroom. Black sealant makes a clean room look dirty, and scrubbing won’t fix it. Replacing it does. In a small place like Coldharbour, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
We don’t show prices on the website, because the cost depends so much on the job itself. For a quick quote, please phone 0345 464 0079 or email us.
Why choose Mr Mastic in Coldharbour
- Anti-fungal sanitary silicone in wet areas
- Trusted Arbo and Everbuild sealants
- Any old sealant cut out fully, not covered over
- White, clear, grey or coloured to suit, where the product allows
See how sealant jobs are priced and our reviews.
What we cannot put right
To be straight with you, some problems need a different trade:
- Damaged sanitaryware that needs replacing
- Extraction that isn’t working, which needs an electrician or ventilation contractor
- Failed tanking or loose tiles behind the sealant
If in doubt, ring 0345 464 0079 or drop us an email and we’ll say what we think.
Where we work in Coldharbour
- Rental portfolios
- Hotel bathrooms
- Office washrooms & kitchens
- Retail & leisure sites
- Student & care accommodation
- Welfare facilities
Workplaces and buildings in Coldharbour
Hard water is the norm across most of the South East, so limescale builds up on sealant, grout and fittings.
Community buildings like Christ Church are part of the picture too: any kitchen and washrooms need the same sealant care as any other building.
Coldharbour is about 4 miles south of Dorking, in Surrey. Whether you’re in the middle of Coldharbour or further out, we cover commercial sealant for every kind of property. We cover 395 towns and villages across Surrey, large and small. Crawley is on our list too, about 9 miles from Coldharbour.
All of RH5 is within our area for commercial sealant, from the main roads to the quietest streets. We also cover the places around Coldharbour: 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). Larger places within reach include 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).
Local landmarks in Coldharbour
We work in homes and buildings around Wotton and Abinger Commons and Plough Inn, among other places. For rail, the closest station is Holmwood station, roughly 1.6 miles east. Well-known places in the area include Mesolithic Museum (2.6 miles north-west) and Abinger Castle (2.6 miles north-west). Not far away are Vann Lake and Leith Hill.
FAQs for Coldharbour
I let a flat near Holmwood station. Can you help?
Yes. We work for letting agents and landlords as well as householders. You can phone 0345 464 0079 or drop us an email with the details for a clear quote.
Do you cover Coldharbour for commercial sealant?
Yes. Our work covers London and the South East, and Coldharbour is part of that. You can ring 0345 464 0079 or email us and let us know what needs doing, and we will give you a clear quote.
Do you remove the old sealant?
Yes, always, and completely. New silicone does not stick to old silicone, so the joint is cleaned back first.
How soon can a room be used after resealing?
Follow the cure time we give you, which is normally around 24 hours. A room-by-room programme keeps only a few rooms out at once.
Will it make a mess?
No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.
Where are you based?
Our base is Crawley. Our area covers South East England, London and Scotland.
Can you start early or work out of hours?
It can be arranged. We’ll confirm the working hours with your quote.
Is it OK to seal over old sealant?
No, because it fails. The old sealant always comes out first, so the new joint bonds to clean surfaces.
Surface by surface
Rental portfolios
A sound seal protects the property as well as its appearance, especially where you rarely see the bathroom yourself.
Office washrooms & kitchens
Kitchen and tea point joints are degreased and resealed, with a food-safe product beside sinks where needed.
