Wokingham · England
External Mastic in Coley Park
External mastic in Coley Park from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Rigid filler in a joint that should flex
- Failed seals between different materials
- Plants rooting in failed movement joints
External mastic for homes and businesses in Coley Park
Many failed façade joints only get noticed once there’s a stain or a damp patch inside. We look over the joints, agree the ones to renew and reseal with a flexible, weatherproof product in a matching colour. If you’re dealing with joints pointed up with cement by mistake and rain getting behind render or cladding at a joint, we can help.
In a smaller place like Coley Park, some homes face open ground, so exposed walls and rooflines take more wind-driven rain. Joints on those sides are usually the first to go.
All of our work is guaranteed for twelve months, in Coley Park and everywhere else we cover.
- Where
- Coley Park (RG1, RG30, RG2)
- Wider area
- Wokingham
- Guarantee
- 12 months on all our work
- Quotes
- A clear price before we start
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What we do, step by step
When we arrive, we look over the joints with you first, so you know exactly what we are doing. Surfaces next to the work are protected before any work begins. The work normally takes anything from a few hours to several days, depending on the building. For a job in Coley Park, we agree the time, the access and parking before the day. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- We start by walking round the building and agreeing the joints and the access.
- 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.
- We apply the sealant, tool it and check the whole run.
Before we arrive
- For indoor joints, keep the area dry beforehand if you can
- Tell us about access, such as stairs, a lift or high-level joints
- Tell us about any water getting in
Getting a quote
For a quick quote, get us on the phone, or email us if that is easier. Tell us about the joints that need doing and we will talk you through the work before giving you a price.
Advice
DIY versus a professional finish
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
If you’ve already had a go yourself, that is fine. We cut it out and start again, so tell us about it when you ask for a quote.
Walls and rooflines in Coley Park
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. With historic houses such as Mapledurham House (about 3.5 miles north-west) nearby, there’s older building stock in the area around Coley Park as well as newer homes. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material.
Rented homes near Reading West station change hands often, and outside joints that have cracked can let damp into a rental, so check them between lets. In the older streets around All Nations Christian Centre, an extension built onto an older house moves differently, and the joint between them takes the strain.
Coley Park is about 1 mile south-west of Reading, in Wokingham. Our applicators cover external mastic for householders, landlords and businesses in Coley Park and the surrounding area. Our Wokingham coverage runs to 35 places, Coley Park among them.
We work across the RG1, RG30 and RG2 postcode area for external mastic. That includes homes and businesses on Hay Road, Shaw Road and Field Road. You’ll find Coley Park on the A4, which makes it straightforward to reach with everything needed for external mastic. We also cover the places around Coley Park: Reading (1 mile north-east), West Reading (1 mile north-west), Green Park (1 mile south), Whitley (2 miles south-east) and Newtown (2 miles north-east). Larger places within reach include Wokingham (6 miles east), Woodley (4 miles east), Crowthorne (10 miles south-east), Lower Earley (3 miles south-east), Winnersh (5 miles east) and Woosehill (6 miles south-east).
Around Coley Park
Typical jobs here are in homes near The Foresters Arms, Eldon Square and The WREN School. You’ll also find Elvian School (0.6 miles west) and University of Reading library (1.8 miles east). Coley Park’s nearest station is Reading West station, roughly 0.7 miles north of the centre. A little further out are Battle Hospital (1 mile north-west) and Broad Street Mall (0.8 miles north-east). For a walk, there’s Sonning Hill and South Lake.
Work for landlords, hotels and businesses
For anyone letting property in or around Coley Park, several properties can go on one quote. Send us the addresses and the work at each.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we will quote.
Towns and villages near Coley Park
What else we do in Coley Park
Signs you need external mastic in Coley Park
The wrong product in a moving joint is a classic cause. A stiff, general-purpose sealant can’t cope with a joint that moves a lot, so it pulls away from the edges.
If you can see any of these, it’s time to have the joints looked at:
- Movement joints with cracked, split or missing sealant
- Old sealant gone brittle and cracked
- Rigid filler in a joint that should flex
- Sealant pulling away from one side of the joint
Schools such as St Mary & All Saints Church of England Primary School are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Questions to ask before you book
- What happens if they find a problem under the old sealant
- Whether they seal over old material or remove it
- How much experience the applicator has
- How the joint is cleaned and prepared
Different surfaces, different methods
Copings and trims
Coping and trim joints face rain and sun head on. Each is resealed with a weatherproof, flexible sealant.
Cladding and façade panels
Panel systems often rely on sealant between and around the panels. Each joint gets a sealant that suits the panel and its movement.
Your questions about external mastic in Coley Park
Can you do external mastic in Coley Park?
Yes. We work across London and the South East, and Coley Park is part of that. Just call 0345 464 0079 or email us with a few details of the job, and we will give you a clear quote.
Can you help a landlord with a rental near Reading West station?
Yes. We work for landlords and agents as well as householders, and several properties can be quoted together. Just call 0345 464 0079 or send us an email with the address and what needs doing, and we’ll give you a clear quote.
Will the old sealant be removed?
Yes. All of the old material is cut out and the joint cleaned.
What is a movement joint?
Brickwork, render and cladding all move a little, and planned joints take up that movement. The gap is sealed with a flexible sealant over backing rod.
Should I try DIY first?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
What do you put in the joint?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We explain the product when we quote.
How much does external mastic cost in Coley Park?
Size, access and the old material all affect the cost. Call for a quick quote.
Can you seal joints between two different materials?
Yes. We cut out the old sealant, prepare both faces and reseal with a flexible exterior product. We pick a colour that works with both materials.
What we can’t put right
We won’t take on work that will not last, so these are the limits:
- Adding movement joints to masonry that has none
- Structural movement, which needs a surveyor or engineer
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
If in doubt, call 0345 464 0079 or drop us an email and we will say what we think.
Joints and surfaces we work on
- Façade panels
- Render & cladding joints
- Concrete & block
- Joints between brick and frames
- Brickwork movement joints
- Copings & trims
Why it’s worth doing now in Coley Park
Sealing over the top of old mastic does not hold for long. The new layer can’t bond properly to old, weathered material, so we always take the old sealant out. Around Coley Park, water from a failed joint in an older home can soak into timber and plaster, which is far harder to put right than the sealant itself.
There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please call 0345 464 0079 or email us.
Why us?
- A 12-month guarantee on all work
- We are fully insured
- Tidy, careful work
- We agree the colour with you first
Take a look at what affects the cost or customer reviews.