Windsor and Maidenhead · England
External & façade joints in Holloway, Windsor and Maidenhead
Sealing brickwork movement joints, render, cladding and façade joints for homeowners, landlords and businesses in Holloway. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Sealant that has lost its bond to the brick or render
- Rigid filler in a joint that should flex
- Weeds or debris growing in open joints
What affects the quote in Holloway
Every job gets its own quote. These are the things that affect it:
- Any working-time requirements on site
- The size of the job
- The old material and how stubborn it is
- How easy the joints are to reach
We do not show prices on the website, because each job is priced on what it involves. For a quick quote, please ring 0345 464 0079 or drop us an email and we’ll talk you through it.
Helping us quote
Photos by email are helpful but not essential. Try to tell us:
- Whether it’s a home or a business
- Any access issues, like height or stairs
- If someone has resealed it before
- Roughly how big the job is
There’s no standard price list, as no two jobs are quite the same. Instead, we send you a clear quote for your job. To get started, phone 0345 464 0079 or drop us an email.
External mastic in Holloway
On houses, flats and commercial buildings across Holloway, we reseal joints in brickwork, render, cladding and façade panels. Every joint gets the same careful preparation: clean, sound faces and a controlled depth. If you have brick movement joints where the sealant has split and water getting into walls through failed joints, we can put it right.
External sealant needs dry, clean surfaces, so work around Holloway is planned for dry weather. Let us know about access to every wall, plus any garages or outbuildings.
You’re covered for a year from the day we finish. If anything isn’t right with it, call 0345 464 0079 or send us an email.
- Location
- Holloway (SL6)
- Wider area
- Windsor and Maidenhead
- Guarantee
- One year on every job
- Quotes
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Towns and villages near Holloway
Other services in Holloway
Holloway: your questions answered
Can you help a landlord with a rental near Furze Platt station?
Yes, we work for landlords and agents. You can phone 0345 464 0079 or send us an email with the address and a few details, and we’ll give you a fixed price before we start.
Is Holloway within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Where is Mr Mastic based?
We work from Crawley. We cover Holloway and the rest of Windsor and Maidenhead.
When is the sealant fully cured?
Cure times vary by product and the temperature. We tell you how long to leave it before we go.
What sealant do you use?
The product depends on the job: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.
Should I point up the gap in my brickwork?
No, not where the gap is a movement joint. Filling it with mortar defeats its purpose. We will reseal it with a flexible sealant.
Can you seal joints between render and window frames?
Yes. Where different materials meet is one of the most common joints we seal. The sealant is chosen to bond to both sides with primer where required.
Do you hold any approvals?
Yes. We are approved under the ARBOMaster scheme, the approved applicator scheme for Arbo sealants.
What the job involves on each surface
Concrete and blockwork
Concrete faces can be dusty and porous, so cleaning and priming matter. A primer goes on where the product requires one before the bead.
Copings and trims
Copings expand and contract through the day, so the joints need a sealant that stays flexible year round.
Holloway buildings and the weather
Historic houses like Harleyford Manor (about 2.7 miles north-west) are a reminder that the area around Holloway has older buildings as well as new. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material. London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Homes close to Saint John the Evangelist include some older properties, and an extension built onto an older house moves differently, and the joint between them takes the strain. If you let a flat or house near Furze Platt station, split movement joints are easy to miss on a rental until damp shows inside.
Holloway is about 2 miles west of Maidenhead, in Windsor and Maidenhead. Anywhere in SL6, we cover external mastic for homes and businesses. Holloway is one of 57 places in Windsor and Maidenhead where we work for external mastic. We also work in Reading, about 10 miles from Holloway.
Our applicators cover all of SL6 for external mastic. External mastic is available to properties on Burchetts Green Lane and Bath Road and the roads around them. Nearby, we also carry out external mastic in Littlewick Green (1 mile south-west), Burchett's Green (1 mile north-west), Woolley Green (1 mile south-east), Stubbings (1 mile north-east) and Pinkneys Green (1 mile north-east). Further out, we also cover Windsor (7 miles south-east), North Ascot (8 miles south-east), Cookham (4 miles north-east), Dedworth (7 miles south-east), Broomhall (11 miles south-east) and South Ascot (10 miles south-east).
Around Holloway
Typical jobs here are in homes near The Shire Horse pub, Newlands Girls' School and Manor Green School, among other places. For rail, the closest station is Furze Platt station, about 2.7 miles north-east. Nearby you will also find St Mark's Hospital (1.8 miles east) and Marlow Museum (3.5 miles north). The countryside around Holloway includes Taplow Lake and Weycock Hill.
How it works
You do not need to clear the whole room or building before we come, only the area right around the joints. Everything nearby is protected, and the job takes a few hours for a handful of joints, longer for a whole elevation for a typical job. In a small place like Holloway, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- The old mastic and anything lodged in the joint is removed.
- We clean both faces of the joint and prime them where the product calls for it.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
How to prepare
- Keep pets and children clear of the area while we work
- Let us know about parking restrictions
- For business premises, tell us about site rules or sign-in
Getting a quote
We quote each job on its own. Just phone 0345 464 0079 or email us with the details and send photos if you have them.
Related advice
Aftercare tips
Aftercare is simple:
- Keep water from gutters off the wall
- Have failed joints looked at early
- Point out the joints to other trades
- Clear growth from the base of walls and joints
Look over the joints once a year, ideally after winter. Splits, gaps at the edges or plants in the joint are early warning signs.
A joint that has stopped moving pushes the movement elsewhere, generally as cracking in the brickwork or render nearby. Catch it early and you reduce the risk.
DIY versus a professional finish
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
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.
When to call us in Holloway
Sunlight, wet weather and frost wear exterior sealant down. Over the years it hardens, cracks on the surface and loses its give, so the joint eventually tears or comes away from one side.
It’s worth asking for a quote if you see:
- Weathered mastic that no longer stretches
- Joints where the bead has come unstuck
- Failed sealant between panels on a façade
- Water getting into walls through failed joints
If you look after a building such as Burchetts Green CofE Infants' School, its movement joints, gutters and trims need looking after like any other building’s.
What to look for in a quote
- What guarantee comes with the work
- How the colour is chosen
- Whether VAT is included
- How hidden problems are handled
What happens if it’s left?
Water gets in through a failed movement joint and can run behind render or cladding. Resealing early keeps the job to the joint itself, rather than the wall around it. Older cottages and farmhouses around Holloway can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. We take all of that into account in your quote.
What you get with us
- Arbo and Everbuild products
- Experience in homes, commercial sites and hotels
- Fully insured
- 180+ five-star Google reviews