Surrey · England
External & façade joints in Norwood Hill, Surrey
Sealing brickwork movement joints, render, cladding and façade joints for householders, landlords and businesses in Norwood Hill. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Weeds or debris growing in open joints
- Weathered mastic that no longer stretches
- Failed seals between different materials
What external mastic looks like in Norwood Hill
Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
If you let a flat or house near Horley station, split movement joints are easy to miss on a rental until damp shows inside.
Norwood Hill is about 2 miles west of Horley, in Surrey. If you need external mastic in Norwood Hill, it’s easy to get a quote: please phone 0345 464 0079 or drop us an email. We’re based in Crawley and cover Surrey. Our area takes in 395 places across Surrey.
Every address in RH6 is covered for external mastic. Other places close to Norwood Hill include Nalderswood (1 mile north-west), Charlwood (2 miles south), Cudworth (2 miles south-west), Parkgate (2 miles west) and Russ Hill (2 miles south). Within a short drive, we also cover Epsom (11 miles north), Redhill (5 miles north-east), Ewell (12 miles north), Reigate (4 miles north), Caterham (9 miles north-east) and Dorking (6 miles north-west).
Local landmarks in Norwood Hill
Locally, jobs take us to homes and businesses close to Edolph's Copse. The closest station to Norwood Hill is Horley station, about 2.8 miles east. A little further out are Reigate Castle (4.2 miles north) and Langley Green Hospital (3.6 miles south-east). For a walk, there’s Reigate Heath.
External mastic in Norwood Hill, done properly
As ARBOMaster approved applicators, we choose exterior sealants to suit the joint and the surfaces. Some surfaces need a primer before sealing. We work on concrete & block, brickwork movement joints and joints between brick and frames, and people most often call us about brick movement joints where the sealant has split and failed sealant between panels on a façade.
Older homes in small places like Norwood Hill may be stone, brick or timber-framed, often with later extensions. The joints where those materials meet are the weak points.
Our work is backed for twelve months, and the guarantee is the same wherever you are.

- Place
- Norwood Hill (RH6)
- Region
- Surrey
- Guarantee
- 12 months on all our work
- Quotes
- A clear price before we start
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Norwood Hill: your questions answered
Will you come out to Norwood Hill?
Yes. Norwood Hill is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
I let a flat near Horley station. Can you help?
Yes, landlords and agents are among the people we work for. You can phone 0345 464 0079 or send us an email with the details for a clear quote.
Where do you work from?
Mr Mastic is based in Crawley. Our applicators cover Norwood Hill.
Will the old sealant be removed?
Yes. All of the old material is cut out and the joint cleaned before applying anything new.
How do you reach high-level joints?
That depends on how high the joints are and the ground below. Low-level joints are straightforward; for higher ones, send details and we will confirm the access.
What should I tell you?
A short description and the location, with pictures by email if possible. We will ask anything else we need to know.
Can you do several jobs on one visit?
Yes. Just list everything you need and you will get one quote.
Is there a guarantee?
Yes: twelve months. If anything is not right with the work within the year, let us know and we will sort it.
Why it’s worth doing now in Norwood Hill
A properly done movement joint is an even line in a colour that suits the wall. A hurried job with smeared edges and no backing looks worse and fails sooner. Around Norwood Hill, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
The cost depends on the size of the job, how hard the old material is to remove and access to the work. You’ll have a clear quote before any work starts.
What you get with us
- A choice of colours where the product allows
- Every job guaranteed for a year
- 4.9 on Google from 180+ five-star reviews
- Over 20 years’ experience
Take a look at our cost guide or what customers say.
Do you need external mastic in Norwood Hill?
If plants are growing out of a joint, the sealant has normally failed or was never there. Dirt and roots then trap moisture in the joint.
Common reasons people contact us are:
- Failed sealant between panels on a façade
- Plants rooting in failed movement joints
- Old sealant gone brittle and cracked
- Water getting into walls through failed joints
In and around Norwood Hill, as anywhere, good external mastic starts with a clean, dry, properly prepared joint.
Comparing quotes
- How the joint is cleaned and prepared
- How the colour is chosen
- What the cure time is
- Is the old sealant removed completely?
Work for landlords, hotels and businesses
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
We work for landlords and agents as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order.
Also near Norwood Hill
More services for Norwood Hill
Different surfaces, different methods
Concrete and blockwork
Blockwork and concrete shrink over time and move with the seasons. Their movement joints are sealed over backing rod with a flexible sealant.
Copings and trims
A failed coping joint lets water into the top of the wall. Resealing them is a small job that protects a lot.
How it works
Our applicators work methodically: protect, prepare, seal, tidy. For most jobs that takes a few hours to a few days, depending on the length of joint and the access, and the area is left clean. In a small place like Norwood Hill, access is usually the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We look at every joint and agree a colour to suit the wall.
- Failed sealant is removed back to clean, sound faces.
- Backing rod goes in so the sealant can stretch between the two faces.
- Primer is applied wherever the sealant needs it.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
Getting ready for the visit
- Where the joints are inside, avoid wetting them before we arrive
- Tell us about any water getting in
- On commercial sites, let us know about site rules
Getting a quote
We quote each job on its own, so start by telling us what you need. Just ring 0345 464 0079 or email us with the details, and photos are welcome.
Read more
Honest limits
Before you book, it’s worth knowing the limits too:
- Rising or penetrating damp from elsewhere in the wall
- Cracked brickwork or render that needs a builder or plasterer
- Loose or hollow render, which needs re-rendering
Not sure which it is? You can ring 0345 464 0079 or send us an email and we’ll tell you honestly.
Surfaces we seal
- Joints between brick and frames
- Brickwork movement joints
- Render & cladding joints
- Copings & trims
- Concrete & block
- Façade panels
Quotes for external mastic in Norwood Hill
The price is agreed before any work begins. It’s based on:
- Mould in or behind the old joints
- The old material and how stubborn it is
- The number of rooms or windows
- Working hours on commercial sites
Leaving a failed joint usually makes the job bigger, not smaller, as water and mould keep getting in. If you’re unsure, call 0345 464 0079 or email us for an honest opinion and a quote.
Helping us quote
Photos by email are helpful but not essential. Please mention:
- If someone has resealed it before
- What the problem is, such as mould, gaps, leaks or cracking
- Access, such as stairs, a lift or height
- Photos by email, if that is easy
Call for a quick quote, or email us if that is easier. Describe what needs sealing and we will explain what’s involved.
