Surrey · England
External Mastic in Dawesgreen
Sealing brickwork movement joints, render, cladding and façade joints for Dawesgreen, backed by a one-year guarantee. Call for a quick quote.
- Joints with sealant missing in places
- Sealant pulling away from one side of the joint
- Panel joints letting water in
Dawesgreen questions
Do you work for landlords with property near Betchworth station?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. You can call 0345 464 0079 or send us an email with the details for a clear quote.
Do you cover Dawesgreen for external mastic?
Yes, Dawesgreen is within the area we cover. We work across London and the South East. You can ring 0345 464 0079 or send us an email and tell us what needs doing.
How long does external mastic take?
Most jobs take a few hours to a few days, depending on the length of joint and the access. We will confirm how long when we quote.
How long does external mastic last?
That depends on the wall, the weather and the movement. Look for splits, hardening or edges coming away and have them redone then.
Can you quote for more than one area?
Yes. More than one area can go on one quote.
Should I point up the gap in my brickwork?
No. Mortar locks the joint solid, so the movement cracks the wall elsewhere. Use a flexible sealant with backing rod.
Do you remove the old sealant?
Yes. Sealing over old sealant is the main reason resealing fails early, so we never do it.
Where is Mr Mastic based?
Our base is Crawley, with over 20 years’ experience. Our area covers South East England, London and Scotland.
How we handle external mastic in Dawesgreen
Failed sealant is cut out, the depth set with closed-cell backing rod, and the joint resealed with a low-modulus sealant made for outside. We pick a colour that sits well with the wall so the joint does not stand out. We work on brickwork movement joints, render & cladding joints and copings & trims, and people most often call us about weathered mastic that no longer stretches and damp patches traced to an open external joint.
Somewhere as small as Dawesgreen, homes and farm buildings often face open ground, so walls and rooflines take the full force of wind and rain. Joints on those walls need a sealant that moves with the building and stays in place.
There’s a 12-month guarantee on every job, large or small.
- Location
- Dawesgreen (RH2)
- Region
- Surrey
- Cover
- A year, on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
How it works
Good joint work is mostly preparation, so that’s where we spend the time. Joints are cleaned back and dried before anything new goes in. In total, it usually takes anything from a few hours to several days, depending on the building. For a village or hamlet like Dawesgreen, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- First, the joints are inspected and the access agreed.
- Every bit of old sealant and any mortar or debris is cut out.
- The faces are brushed clean and primed where the product requires it.
- Backing rod sized to the joint goes in to set the depth.
- The exterior sealant is applied, tooled and checked along its length.
How to prepare
- For business premises, tell us about site rules or sign-in
- Try not to wet indoor joints just before the visit
- Move anything stored near the joints
Getting a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints.
Read more
External mastic in Dawesgreen: local notes
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Letting a property close to Betchworth station? Then split movement joints are easy to miss on a rental until damp shows inside. For site and facilities teams at buildings such as Burys Court School, larger buildings have long runs of movement joint that eventually need resealing.
Dawesgreen is about 3 miles south-west of Reigate, in Surrey. For external mastic in and around Dawesgreen, please ring 0345 464 0079 or send us an email for a quick quote. We cover Surrey from our Crawley base. Our Surrey coverage runs to 395 places, and Dawesgreen is one of them. Our Crawley page covers work nearby (7 miles or so).
We work across the RH2 postcode area for external mastic. Whether your property is on Tapner's Road and Bunce Common Road or a nearby road, our applicators can take on the job. Neighbouring places we cover for external mastic include Leigh (1 mile south-east), Bunce Common (1 mile west), Strood Green (1 mile north-west), Irons Bottom (2 miles east) and Brockham (2 miles north-west). Larger places within reach include Guildford (14 miles west), Epsom (9 miles north), Horley (4 miles south-east), Redhill (4 miles north-east), Ewell (10 miles north) and Reigate (3 miles north-east).
Local landmarks in Dawesgreen
We work in homes and buildings around The Seven Stars Public House and the streets around them. The closest station to Dawesgreen is Betchworth station, roughly 2.6 miles north of the centre. Other landmarks nearby include East Surrey Hospital (4 miles east) and Reigate Priory Museum (2.8 miles north-east). The countryside around Dawesgreen includes Reigate Heath and Colley Hill.
Leave it or put it right?
An open joint keeps letting water into the wall with every downpour. Wet masonry is more easily damaged by frost near the open joint, so the problem grows beyond the joint itself. Around Dawesgreen, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
Rather than a set price list, we price the job in front of us: the amount of work, the old material and the access. You will know the price before we begin.
Why choose Mr Mastic in Dawesgreen
- Quality sealants from Arbo and Everbuild
- Domestic, commercial and hotel work
- Fully insured
- Old sealant always removed completely
Take a look at how sealant jobs are priced or our reviews.
Keeping the joints in good condition
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Point out the joints to other trades
- Don’t let climbing plants root in the sealant
- Deal with leaking gutters that soak the joints below
- Leave the joints unpainted unless we have said otherwise
Give the sealant the cure time we tell you before anything rubs against it. Most exterior sealants skin fast but take longer to cure right through.
Water getting behind cladding or render can go unnoticed for a long time. When it finally shows inside, the joint may have been open for years, so it’s worth resealing at the first signs.
Work for landlords, hotels and businesses
Letting agents often deal with us directly. Tell us the address, the job and how access works.
Whether it’s one flat or a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Do you need external mastic in Dawesgreen?
Some movement joints have been pointed up with mortar by mistake. The joint can’t move, so the wall cracks somewhere else instead.
If you can see any of these, it’s time to have the joints looked at:
- Failed seals between different materials
- Plants rooting in failed movement joints
- Weathered mastic that no longer stretches
- Movement joints filled with mortar instead of sealant
Homes close to Church of St Bartholomew include some older properties, and old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Before you book anyone
- Whether VAT is included
- Are they insured?
- Who turns up on the day
- Is the old sealant removed completely?
Can I do it myself?
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
Places near Dawesgreen
Also in Dawesgreen
What the job involves on each surface
Brickwork movement joints
Brick moves with heat and moisture, and grows a little over time. That movement goes into the joint, so the sealant in it must stay soft and stretchy.
Cladding and façade panels
Where a cladding system has its own specified sealant, we follow it or an approved alternative. Send us any details you have about the façade.