Hertfordshire · England
External Mastic in Bricket Wood
External mastic for Bricket Wood, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Failed sealant between panels on a façade
- Movement joints with cracked, split or missing sealant
- Joints where the bead has come unstuck
The process
There’s no need to move everything out before we come, just the space around the work. Everything nearby is protected, and the work takes a few hours for a handful of joints, longer for a whole elevation for a typical job. In a smaller place like Bricket Wood, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.
- Each joint is checked and the colour of the new sealant agreed.
- We take out the old sealant until the faces are sound.
- Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
- We prime the faces where required.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
Before we arrive
- For business premises, tell us about site rules or sign-in
- Keep children and pets away from the work area
- Mention if the joints have been sealed before
Ask for a quote
For external mastic in Bricket Wood, call 0345 464 0079 or drop us an email. Tell us what the problem is and where, and we will agree the price before any work begins.
Advice
External mastic in Bricket Wood
Low-level joints can generally be done from the ground. For joints higher up, give us some details of the building and we’ll confirm what access is needed. Common call-outs are for failed seals between different materials and weeds or debris growing in open joints, across copings & trims, brickwork movement joints and render & cladding joints.
Homes around Bricket Wood range from older cottages to newer houses, with walls and rooflines of every type. Older homes need their gutter and trim joints kept tight, newer ones their movement joints.
Big or small, you get the same 12-month guarantee in Bricket Wood and across Hertfordshire.
- Location
- Bricket Wood (AL2)
- Wider area
- Hertfordshire
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Walls and rooflines in Bricket Wood
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. Historic houses like High Elms Manor (about 1.1 miles west) are a reminder that the area around Bricket Wood has older buildings as well as new. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material.
Letting a property close to Bricket Wood station? Then outside joints that have cracked can let damp into a rental, so check them between lets. In the older streets around Church of All Saints, the joints between older walls, newer extensions and the roofline need a sealant that can move. For site and facilities teams at buildings such as Mount Pleasant Lane Primary School, larger buildings have long runs of movement joint that eventually need resealing.
Bricket Wood is about 3 miles north-east of Watford, in Hertfordshire. Whether you are in the middle of Bricket Wood or further out, external mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Our Hertfordshire coverage runs to 381 places, and Bricket Wood is one of them. For nearby work, see our London page (19 miles or so).
Jobs for external mastic in AL2 works the same way as everywhere else we cover. Local streets include Station Road, Brackendene and Moss Side, and we cover them all. You’ll find Bricket Wood on the A405, which makes it straightforward to reach with everything needed for external mastic. If you’re just outside Bricket Wood, we cover Waterdale (1 mile west), How Wood (1 mile north-east), Chiswell Green (1 mile north), Frogmore (2 miles north-east) and Park Street (2 miles north-east). Within a short drive, we also cover Watford (3 miles south-west), Hemel Hempstead (5 miles north-west), St Albans (4 miles north-east), Welwyn Garden City (10 miles north-east), Harpenden (8 miles north) and Hoddesdon (15 miles east).
Near you in Bricket Wood
We work in homes and buildings around Garston Park, The Black Boy Public House and Saint Michael's Catholic High School. The closest station to Bricket Wood is Bricket Wood station, roughly 0.5 miles east. A little further out are Radlett and District Museum (3 miles south-east) and Hilfield Castle (4 miles south). Not far away are Longspring Wood and Verulamium Lake.
Surface by surface
Render joints
Render is weaker at the surface than brick, so a sealant that stretches easily protects the edges. Priming is done where the sealant calls for it.
Cladding and façade panels
If the façade has a specified sealant, that is what we use or an approved alternative. Send us any details you have about the façade.
Landlords, agents and businesses in Bricket Wood
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Failed sealant is one of the commonest items on a check-out report. We can quote for more than one property at once.
Bricket Wood questions
Do you work for landlords with property near Bricket Wood station?
Yes, landlords and agents are among the people we work for. Just phone 0345 464 0079 or drop us an email with the address and what needs doing, and we will give you a clear quote.
Can you do external mastic in Bricket Wood?
Yes. We work across London and the South East, and Bricket Wood is part of that. You can phone 0345 464 0079 or send us an email and tell us what needs doing, and we will give you a clear price.
Does someone need to be in?
That depends on where the joints are. Inside work needs someone to give us access, while outside work can sometimes be arranged differently.
What’s an expansion joint in brickwork?
A movement joint is a planned break in the wall that absorbs expansion and shrinkage. It should be filled with flexible sealant, never mortar.
Is there a guarantee?
Yes: twelve months. If anything isn’t right with the work within the year, let us know and we’ll sort it.
Are you ARBOMaster approved?
Yes. Mr Mastic is an ARBOMaster approved applicator.
Do you do commercial work?
Yes. We work in offices, washrooms, hotels and other commercial premises. We can talk about working times when we quote.
Can you seal joints between two different materials?
Yes. The old joint is removed, both surfaces cleaned and primed where needed, and a flexible sealant applied. We pick a colour that works with both materials.
Why deal with it now?
Done well, a resealed joint is a neat, straight line that suits the wall. A rushed bead with no backing looks untidy and doesn’t last, so it pays to do it properly once. Homes in smaller places like Bricket Wood can face more weather, and failed outside joints let damp into walls. Inside, a split seal lets water into floors and panels just as it would anywhere.
Doing several joints on one visit is generally more efficient than separate visits, so tell us about everything that needs sealing. You will get one clear quote for the whole job.
Why us?
- Fully insured
- Trusted Arbo and Everbuild sealants
- We leave the area clean and tidy
- Sanitary silicone with an anti-fungal additive in wet areas
Looking after it afterwards
No joint lasts for ever, but care makes a real difference. Our tips:
- Have failed joints looked at early
- Avoid pressure-washing directly into sealant joints
- Don’t let climbing plants root in the sealant
- Keep movement joints as flexible joints, not mortar
Give the sealant the cure time we tell you before anything rubs against it. The surface skins over quickly, but full cure takes longer.
If you can see gaps, plants or bare sections in a joint, have it checked. Early work is quicker and leaves a better finish.
Can I do it myself?
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Towns and villages near Bricket Wood
Other services in Bricket Wood
When it is not the sealant
To be straight with you, some problems need a different trade:
- Walls that need new movement joints cut into them
- Subsidence or other structural problems
- Damp that is not coming from the joint
If you’re not sure, just call 0345 464 0079 or send us an email and we will give you a straight answer.
Where we work in Bricket Wood
- Render & cladding joints
- Joints between brick and frames
- Brickwork movement joints
- Concrete & block
- Copings & trims
- Façade panels