Surrey · England
External Mastic in Pitland Street
External mastic for Pitland Street, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Moss and dirt in joints with no sealant left
- Leaking joints around cladding and façade panels
- Joints with sealant missing in places
DIY sealant or a professional job?
If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
About our external mastic in Pitland Street
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. We work on concrete & block, façade panels and brickwork movement joints, and the jobs we see most are movement joints filled with mortar instead of sealant and rain getting behind render or cladding at a joint.
External sealant needs dry, clean surfaces, so work around Pitland Street is planned for dry weather. Tell us about access to all sides of the building, including outbuildings and garages.
You’re covered for a year from the day we finish. If there’s a problem with it, please phone 0345 464 0079 or send us an email.

- Where
- Pitland Street (RH5)
- Wider area
- Surrey
- Cover
- 12 months on all our work
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Your questions about external mastic in Pitland Street
Do you work for landlords with property near Gomshall station?
Yes. We work for letting agents and landlords as well as householders, and several properties can go on one quote. Just call 0345 464 0079 or drop us an email with the address and what needs doing, and we will give you a clear quote.
Do you cover Pitland Street for external mastic?
Yes, Pitland Street is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or email us with a few details of the job.
Is there a guarantee?
Yes, for a year. If there’s a problem with our work in that time, tell us and we will put it right.
Will the new joint stand out?
The aim is a neat, even joint in a colour that suits the wall. We will talk through colour options before we start from the range available.
Can new sealant go over the old?
No. New silicone won’t bond to old silicone, and it traps any mould or water underneath. We remove it all first.
Will you leave a mess?
Very little: the area around the joints is protected first, and we tidy up before we go.
How long does the job take?
That depends on the amount of work, but most jobs take a few hours to a few days, depending on the length of joint and the access. We will tell you when we quote.
Where is Mr Mastic based?
Our base is Crawley. Our area covers South East England, London and Scotland.
The process
Before we leave, we go over the finished joints with you and tell you how long to leave it. The visit itself usually takes a few hours for a handful of joints, longer for a whole elevation, depending on the size of the job. Somewhere as small as Pitland Street, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- Each joint is checked and the colour of the new sealant agreed.
- Failed sealant is removed back to clean, sound faces.
- Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
- Primer is applied wherever the sealant needs it.
- We gun in low-modulus sealant and tool it neatly.
Preparing for the visit
- Let us know about stairs, lifts or work at height
- Let us know about earlier repairs to the joints
- Plan for the work area to be out of bounds to pets and children
How to get a quote
Getting a quote is simple: let us know what needs doing and where, and roughly how big it is. Photos by email help us understand the job.
Read more
For landlords and businesses
From a single let to a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a 12-month guarantee.
For anyone letting property in or around Pitland Street, jobs at different addresses can go on one quote. Send us the addresses and the work at each, and pictures by email help.
Pitland Street buildings and the weather
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
In the older streets around St Mary The Virgins Church, the joints between older walls, newer extensions and the roofline need a sealant that can move. Schools such as Belmont Prep School are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Pitland Street is about 5 miles south-west of Dorking, in Surrey. Homes, rented property, offices and hotels in Pitland Street can book us for external mastic. The work is guaranteed for a year. Our area takes in 395 places across Surrey. There’s also a page for Crawley, about 11 miles away.
Postcode districts we cover here for external mastic: RH5. Streets in the area include Horsham Road, Pitland Street and Holmbury Hill Road, and we cover them all. We also cover the places around Pitland Street: Holmbury St Mary (1 mile north), Peaslake (2 miles west), Ewhurst (3 miles south-west), Ewhurst Green (3 miles south) and Mayes Green (3 miles south). We also work in nearby towns such as Guildford (8 miles north-west), Woking (12 miles north-west), Epsom (12 miles north-east), Horley (10 miles east), Redhill (11 miles east) and Ewell (13 miles north-east).
Near you in Pitland Street
Typical jobs here are in homes near Hurtwood House and Wotton and Abinger Commons, among other places. Pitland Street’s nearest station is Gomshall station, about 2.7 miles north-west. Nearby you will also find Abinger Castle (1.2 miles north) and Mesolithic Museum (1.2 miles north). The countryside around Pitland Street includes Vann Lake and Leith Hill.
What affects the quote in Pitland Street
Jobs vary more than people expect. The main factors:
- The old material and how stubborn it is
- The number and length of the joints
- How many rooms, windows or areas are involved
- Whether there’s mould to deal with
The cost reflects the work involved, not guesswork. That is why we ask a few questions first and send you a clear quote before we start.
Helping us quote
You do not need to know the technical terms. It helps if you can tell us:
- Pictures of the joints, sent by email
- Where the job is, and your postcode
- The rough size of the job
- Whether it has been sealed before
To get a quote, phone 0345 464 0079 or email us and tell us where the job is and what the problem looks like. You’ll have a clear quote before work begins.
Surface by surface
Copings and trims
Coping joints that leak let water straight down into the wall. Resealing them is a small job that protects a lot.
Render joints
Water behind render can lead to blown patches. A sound joint keeps the render dry behind.
When to call us in Pitland Street
UV, rain and frost all age exterior sealant. In time it goes hard, crazes on the surface and stops stretching, so the next time the wall moves, it splits or pulls away.
These are the problems we are asked about most:
- Sealant pulling away from one side of the joint
- Leaking joints around cladding and façade panels
- Brick movement joints where the sealant has split
- Rain getting behind render or cladding at a joint
Rented homes near Gomshall station change hands often, and outside joints that have cracked can let damp into a rental, so check them between lets.
Before booking anyone
- Are they insured?
- How the surfaces are prepared before sealing
- What product goes in the joint
- The length of the guarantee
Why it’s worth doing now in Pitland Street
It often makes sense to reseal all the failing joints on an elevation together. Joints of the same age tend to fail together and it means sorting access once. Where a wall is exposed, as many are in small places like Pitland Street, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
The cost depends on the size of the job, how much old material has to come out and how easy the joints are to reach. You’ll have a clear quote before any work starts, so you know where you stand.
What you get with us
- We leave the area clean and tidy
- A choice of colours where the product allows
- Old sealant always removed completely
- A 12-month guarantee on all work
Read how sealant jobs are priced or our reviews.
