Buckinghamshire · England
External & façade joints in Newyears Green, Buckinghamshire
External mastic in Newyears Green from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Brick movement joints where the sealant has split
- Water getting into walls through failed joints
- Hard, crazed mastic that has stopped moving
About our external mastic in Newyears Green
Many failed façade joints only get noticed once there’s a stain or a damp patch inside. We inspect them, agree which need doing and reseal with a weatherproof, flexible sealant in a colour to suit. We work on render & cladding joints, joints between brick and frames and copings & trims, and common reasons people get in touch are weeds or debris growing in open joints and water getting into walls through failed joints.
Around Newyears Green, older buildings can be stone, brick or timber-framed, many with extensions added later. Where one material meets another is where water normally gets in.
We stand behind the work with a one-year guarantee.
- Place
- Newyears Green (UB9)
- Region
- Buckinghamshire
- Cover
- 12 months on all our work
- Quotes
- A clear price before we start
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
DIY sealant or a professional job?
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
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.
Your questions about external mastic in Newyears Green
Do you work for landlords with property near West Ruislip station?
Yes, landlords and agents are among the people we work for. You can ring 0345 464 0079 or send us an email with the details for a clear quote.
Is Newyears Green within the area you cover?
Yes, Newyears Green is covered. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Is it OK to fill a movement joint with cement?
No. Cement or mortar can’t stretch, so the joint stops doing its job. Where a joint has been mortared, it can often be raked out and sealed properly.
Can new sealant go over the old?
No. New silicone will not bond to old silicone, and it traps any mould or water underneath. We remove it all first.
Is the work guaranteed?
Yes, always. There’s a 12-month guarantee on every job, large or small.
Where is Mr Mastic based?
Mr Mastic is based in Crawley. Our applicators cover Newyears Green.
Will there be a smell?
Possibly a little. Any smell clears as the sealant cures, and ventilation helps.
What information do you need?
Let us know what needs doing and where. We’ll ask anything else we need to know.
Work for landlords, hotels and businesses
Hotels need rooms back in use, so we plan the work room by room. We’ve worked in hotels as well as homes and businesses.
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. We can quote for more than one property at once.
Why act early in Newyears Green
A properly done movement joint is an even line in a colour that suits the wall. A rushed bead with no backing looks untidy and doesn’t last. Where a wall is exposed, as many are in small places like Newyears Green, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
There are no prices on our website, because each job is priced on what it involves. For a quick quote, please ring 0345 464 0079 or send us an email and we will talk you through it.
Why us?
- Arbo and Everbuild products
- White, clear, grey or another colour, product permitting
- More than 20 years in sealant work
- We agree the colour with you first
Read what affects the cost or customer reviews.
Quotes for external mastic in Newyears Green
The quote reflects the job in front of us. We take into account:
- Whether the work is at height
- How many rooms, windows or areas are involved
- The old material and how stubborn it is
- The type of sealant required
Doing several joints on one visit is usually more efficient than separate visits, so tell us about everything that needs sealing. We will send you a clear quote for the lot.
Helping us quote
To help us quote quickly, let us know:
- Where the property is
- Access, such as stairs, a lift or height
- Whether it’s a home or a business
- How many joints, rooms or windows are involved
For external mastic in Newyears Green, call 0345 464 0079 or email us. Tell us what the problem is and where, and you will get a clear quote before work begins.
How it works
Before we leave, we go over the finished joints with you and tell you how long to leave it. The work normally takes anything from a few hours to several days, depending on the building, depending on how much there is to do. Somewhere like Newyears Green needs a little journey planning: 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.
- We cut out the old mastic and rake out anything in the joint.
- The faces are brushed clean and primed where the product requires it.
- We fit closed-cell backing rod to control the depth.
- We apply the sealant, tool it and check the whole run.
Before we arrive
- Let us know about earlier repairs to the joints
- Tell us if parking is tricky
- Let us know about stairs, lifts or work at height
How to get a quote
There’s no standard price list. Instead, we give you a clear price for your job. To get started, ring 0345 464 0079 or email us.
Related advice
Places near Newyears Green
More services for Newyears Green
Newyears Green buildings and the weather
Historic houses like Ickenham Hall (about 1.5 miles south-east) are a reminder that the area around Newyears Green has older buildings as well as new. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth. Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Managing a site like Whiteheath Infant and Nursery School? Then its movement joints, gutters and trims need looking after like any other building’s. Ickenham Hall, about 1.5 miles south-east, is one of the historic houses in the wider area around Newyears Green.
Newyears Green is about 2 miles west of Ruislip, in Buckinghamshire. Across the UB9 area, we can carry out external mastic at your property. Our Buckinghamshire coverage runs to 263 places, Newyears Green among them. We also work in London, about 17 miles from Newyears Green.
We work across the UB9 postcode area for external mastic and the streets around it. Neighbouring places we cover for external mastic include South Harefield (1 mile north-west), Ickenham (2 miles south), Denham (2 miles south-west), Ruislip Manor (2 miles east) and Ruislip (2 miles east). Within a short drive, we also cover High Wycombe (13 miles west), Chesham (11 miles north-west), Marlow (14 miles west), Amersham (9 miles north-west), Beaconsfield (8 miles west) and Chalfont St Peter (5 miles west).
What’s near Newyears Green
Around Newyears Green, our work takes us to homes and buildings near Breakspear Arms, Vyners School and Church Field Gardens. For rail, the closest station is West Ruislip station, roughly 1.2 miles south-east of the centre. A little further out are Harefield Hospital (2.1 miles north-west) and The Chimes (2.6 miles south). The countryside around Newyears Green includes Dews Farm Sand Pits and Northala Fields.
When it is not the sealant
It helps to know what we cannot do:
- Render that’s blown, hollow or coming away
- Rising or penetrating damp from elsewhere in the wall
- Cracked brickwork or render that needs a builder or plasterer
If you are not sure, just ring 0345 464 0079 or drop us an email and we will give you a straight answer.
What we seal
- Façade panels
- Render & cladding joints
- Copings & trims
- Concrete & block
- Brickwork movement joints
- Joints between brick and frames
Signs you need external mastic in Newyears Green
Every building moves. Clay bricks expand slightly over their life, concrete and block shrink, and everything moves with temperature and wet. The sealant in the movement joints takes that strain.
The problems people usually mention when they call are:
- Weathered mastic that no longer stretches
- Gaps where render, brick and frames meet
- Weeds or debris growing in open joints
- Rain getting behind render or cladding at a joint
For landlords with property near West Ruislip station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Comparing quotes
- What happens if they find a problem under the old sealant
- Is the old sealant removed completely?
- How the joint is cleaned and prepared
- What the cure time is