
Facade and window perimeter sealing in Dorking, Surrey
Facade sealing in Dorking, backed by over 20 years in commercial sealing. Fully insured and CHAS accredited.
- Facade joints cracked through the middle
- Failed sealant on precast panel joints
- Unsightly perimeter sealant on a visible elevation
Facade sealing for Dorking sites
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Doing it in-house
Paperwork matters too. Many sites expect CSCS cards, RAMS and proof of insurance, and we will confirm the paperwork you need with the quote.
What you see is the finished bead, but most of the work is hidden. Correct depth, the right primer and a sealant matched to the movement are where general trades tend to cut corners.
How we handle facade sealing in Dorking
Installing framed glazing systems isn’t part of our work. We handle the sealant joints that surround those elements: perimeter joints where frames meet the structure, panel joints and window perimeters with products suited to facade or glazing perimeter joints. The enquiries we see most involve staining on stone next to old sealant and new sealant peeling off old mastic, on stone and brick facade joints, window and door perimeters and cladding panel joints. A single leaking joint is often how a building in Dorking first comes to us: we look at the rest while we’re there and tell you what we find.
Older town-centre buildings in places like Dorking are often converted to new uses or extended, so new windows and cladding meet old masonry. Those junctions need a sealant and primer that suit both surfaces.
Every job is signed off with a 12-month guarantee. It’s a plain promise: if the work we did fails within twelve months, we return to fix it.

- Place
- Dorking (RH4, RH5)
- Region
- Surrey
- Cover
- A 12-month guarantee
- Quote
- Quoted before any work starts
- Telephone
- 01277 525 020
- Page updated
- 3 November 2026
Facade sealing in Dorking: the local picture
Central London is about 21 miles from Dorking. Building activity in the commuter belt runs from new flats near stations to business park refurbishments, so mastic packages have to keep pace with busy programmes. Dorking sits in one of the drier corners of the country, the South East. That doesn’t stop wet spells, or frosty starts that leave panels too damp to seal, so external mastic is timed for workable conditions and agreed with the site manager.
Extensions at sites like Dorking Community Hospital, under half a mile to the south-west of Dorking, typically sit beside working departments, and the mastic follows strict access rules. With historic properties like Polesden Lacey, 2.7 miles to the north-west of Dorking, in the area, refurbishment work often meets old masonry that needs compatible sealants.
Dorking is about 10 miles north-west of Crawley, in Surrey. Our applicators travel to Dorking for work on facade joints, handled exactly as we handle every other area. Dorking is one of 379 places we cover in Surrey for facade joints. For work in that direction, see our London page (21 miles or so).
We cover the RH4 and RH5 postcode districts for facade joints. We cover commercial and managed buildings on High Street, Station Road and London Road and the roads nearby. Being close to the A24 and A25, Dorking is straightforward for us to reach. Nearby places we also cover include Pixham (1 mile north-east), North Holmwood (1 mile south), Westhumble (2 miles north), Westcott (2 miles west) and Blackbrook (2 miles south-east). Bigger towns within reach include Guildford (11 miles west), Woking (12 miles north-west), Epsom (8 miles north), Horley (8 miles south-east), Redhill (7 miles east) and Ewell (9 miles north).
Landmarks near Dorking
We work on buildings around The Wheatsheaf Public House, The Ashcombe School and Deepdene Terrace. Other local landmarks include The Ashcombe School (0.6 miles north) and Pippbrook House (0.5 miles north). For rail, the closest station is Dorking Deepdene station, about 0.6 miles north of the centre. Well-known places in the area include Mesolithic Museum (3.9 miles south-west) and Headley Court (4.8 miles north-east). Open spaces near Dorking include Reigate Heath and Box Hill.
Keeping the joints sound
For the best life from the joints:
- Inspect facade joints on a regular cycle
- Confirm the survey covers external sealants in older buildings
- Investigate damp beside windows promptly
- Insist on a full cut-out when joints are renewed
Hold back any cleaning crew until the joints have had their stated cure time. Pressure washers and harsh cleaners can damage a fresh bead and tell your cleaning contractor.
Check older buildings for asbestos before disturbing old mastic. Some older mastics contain it, and if it’s suspected, we stop until it has been tested.
Nearby places to Dorking
What else we do in Dorking
Questions about Dorking
Do you cover business parks and estates near Dorking, such as Glebelands Centre Business Park?
Yes. Our area takes in Dorking and its surroundings, with estates and business parks such as Glebelands Centre Business Park included. To start, just phone 01277 525 020 or use the quote form with the unit, the joints involved and your access times.
Can you work on a hospital site such as Dorking Community Hospital?
Yes. Healthcare sites are among the places we work. The estates team’s permit system and infection-control rules come first, and the work is planned around them.
Can you find out why a window is leaking?
Yes. Photos help, and you can ring 01277 525 020 or send details through our quote form to arrange a visit. Many frame leaks are sealant failures, though not all.
Is colour matching possible?
It depends on the product specified. Some ranges are wide, others limited, so we will confirm the colours available for the specified product with the quote.
Do you have public liability insurance?
Yes. We are fully insured, including public liability cover.
Is Dorking in your area?
Yes. Sites across Dorking are covered.
Are you CHAS accredited?
Yes. Mastic Doctor is CHAS accredited and a Constructionline member, which helps with supplier vetting.
When it isn’t the sealant
We check first that sealant really is the fix. It won’t put right:
- Cracked or spalling substrates that need repair before sealing
- Replacing glass or failed glazing units
- Joints too narrow for the movement they take, which need redesign
If you are not sure, just call the office on 01277 525 020 or email drawings and photos and we will give you a straight answer.
Where we work in Dorking
- Cladding panel joints
- Shopfront frames
- Coping and flashing joints
- Perimeter joints where frames meet the structure
- Stone and brick facade joints
- Window and door perimeters
Leave it or put it right?
Patch repairs over old sealant tend to come back. A full cut-out and fresh bead is the repair that holds. In a town like Dorking, a split, stained or mouldy joint is often the first thing visitors notice. Fresh sealant makes a building look maintained.
The price depends on how many linear metres there are, how much old material needs removing and the access. Call for a quote once you have the details.
Why us?
- Public liability insurance in place
- Joints cleaned back to sound surfaces
- Work to your specification and the manufacturer’s guidance
- Colours chosen to suit frames, cladding or finishes where possible
See what affects the cost or our accreditations and insurance.
Signs you need facade sealing in Dorking
New sealant run over old sealant rarely holds. Fresh silicone won’t stick to cured silicone, and the patch soon lifts.
Things that usually lead to an enquiry:
- New sealant peeling off old mastic
- Cold air coming in at window perimeters
- Cladding panel joints that have opened up
- Weathered joints at frame-to-structure perimeters
Projects at schools like St Paul's CofE (Aided) Primary School work to term dates, so mastic is programmed tightly.
Before you book anyone
- Will CSCS-carded applicators be on site?
- What the guarantee covers, and for how long
- Health and safety accreditation such as CHAS
- How the joint faces will be prepared and primed
On site: what to expect
On arrival, we sign in, go through any site induction and check how permits are handled. Floors, finishes and fittings next to the joints are covered before any cutting starts, and the work normally takes anything from a single day to several weeks, depending on joint lengths, access and the weather. Parking and loading for town-centre jobs in Dorking are worth mentioning when you send details. On estates and business parks it’s typically simpler.
- We plan access and the order of elevations with the client.
- Weather and temperature are checked against the product’s limits.
- Each joint is cut out and the edges inspected.
- Faces are cleaned, primed where needed and backed.
- Facade-grade sealant goes in and is tooled to a tidy concave profile.
- We hand over with our 12-month workmanship guarantee.
Before we start on site
- Arrange parking or a loading space
- Tell us which areas need to stay in use
- Tell us what induction or permit system the site runs
Get a fixed quote
A good quote starts with a clear picture: the joints involved, quantities, access and the product called for. Share whatever details you have and we will fill any gaps with a visit.