
Construction and new-build mastic in Wickham, West Berkshire
Construction mastic for Wickham, from a contractor working since 2005. Fully insured, with a 12-month guarantee.
- Mastic snags holding up handover
- Inconsistent sealant finishes from plot to plot
- New external sealant already peeling away
Construction mastic near Wickham
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Questions about Wickham
Which documents can you supply for work in Wickham?
RAMS, insurance certificate, CSCS details: list what the site needs and we will confirm it with the quote. We hold £5m public liability insurance, are CHAS accredited and a Constructionline member, and our applicators are CSCS-carded.
Is Wickham off your patch?
No. Small places get the same service as large ones. We work across Greater London and the South East. We plan jobs in smaller places so return trips are kept to a minimum.
Does the weather affect the work?
It can, when the joints are outside. Sealant won’t bond properly to a wet or frosty joint, so we watch the forecast and rearrange outside work if we have to. Internal work is far less affected.
Will you quote for a small job?
We quote for single jobs as well as large packages and programmes. Send details for a fixed quote.
How do you work with the site programme?
We seal plot by plot or floor by floor as areas are released. The sequence is agreed with the site manager at the start and updated as the programme moves.
Do you do internal caulk as well as external mastic?
External perimeters and movement joints, internal caulking where specified, sanitary and kitchen joints, plus snagging.
Do you offer coloured sealant?
It depends on the product. Some ranges offer many colours, others very few, so we’ll confirm the colours available for the specified product with the quote.
How we handle construction mastic in Wickham
Since 2005 we’ve worked alongside main contractors, developers and fit-out firms. Quantities come off the drawings, the sequence is agreed with the site manager and the work follows the trades. To price a package in Wickham, send drawings and the specification through our quote form. Site teams most often ask us about early adhesion failures on new external joints and old sealant on a refurbishment that needs stripping before new work, on internal decorators’ caulk, floor and skirting junctions and sanitary and kitchen joints. A single leaking joint is often how a building in Wickham first comes to us: we look at the rest while we are there and tell you what we find.
Sites around smaller places like Wickham can be a fair drive from suppliers, so we come with everything the package needs. Drawings, photos and the programme let us give a fixed quote.
Our 12-month guarantee is about workmanship, not wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we spell out the cover before we begin.

- Place
- Wickham (RG20)
- Region
- West Berkshire
- Guarantee
- 12 months on our workmanship
- Quotes
- A fixed quote before we start
- Telephone
- 01277 525 020
- Page updated
- 3 November 2026
Why act early in Wickham
A cheaper sealant can look like an easy saving on a large package. A failed joint in the defects period costs far more than the product difference, especially externally. Where an alternative is genuinely suitable, we will say so. Converted and older buildings near places like Wickham tend to move, and aged sealant cracks. The right product, sized to the joint, copes much better.
Cost follows what’s involved: stripping out, preparation, sealing, access and phasing. Call for a quote.
What you get with us
- One contact handling all your sites
- Failed material removed, not covered up
- RAL and finish matching where the product range allows
- Health and safety: CHAS accredited
How the job changes by surface
Kitchens and utility areas
Worktop upstands, sinks and splashbacks are sealed once the kitchen is fitted. The sealant is a kitchen-grade product, food-safe where food contact is possible.
Snagging before handover
The last pass before handover is where mastic snags are cleared. We can work through the snag list area by area.
Keeping the joints sound
A few simple habits keep the new joints working:
- Keep product details for future maintenance
- Check frame gaps are within the sealant’s range before sealing
- Put any product change through the designer first
- Bring the mastic contractor in after the last trades are through
Expect some settlement in the first months. The right product in each joint copes with that while rigid fillers and caulk can crack where movement is larger. We can advise if a joint needs a different product.
External joints sealed in poor weather are a common cause of early failure. Waiting for a dry joint and the right temperature is better than redoing work, so we plan external work with that in mind.
When it isn’t the sealant
Being straight saves everyone time. New sealant won’t cure:
- Defective windows, doors or glazing units (the supplier or installer’s job)
- Specifying the product where the designer hasn’t
- Frame gaps too wide for sealant, which the installer needs to correct
Not sure which it is? You can phone 01277 525 020 or send details through our quote form and we will tell you honestly before you book.
Surfaces we seal
- Sanitary and kitchen joints
- Cladding and panel joints
- Brick and block movement joints
- Internal decorators’ caulk
- Window and door perimeters
- Floor and skirting junctions
Contractors’ notes for Wickham
Wickham sits in one of the drier corners of the country, the South East. Still, external mastic needs dry faces within the maker’s temperature limits, which isn’t every day, so we time external mastic for dry faces and agree it with the site team. Wickham is about 58 miles from central London. Towns within reach of London tend to keep building, from flats to offices and schools, which keeps mastic packages in demand.
School extensions, at buildings such as Welford and Wickham C.E. Primary School, usually run to the summer holidays, mastic included.
Wickham is about 6 miles north-west of Newbury, in West Berkshire. We cover commercial sites throughout Wickham, whether it’s a single job or part of a planned programme. Wickham is one of 140 places in West Berkshire on our list for mastic packages. Reading is covered too, around 20 miles from Wickham.
Commercial sites across RG20 are covered. Streets here include Welford Road, Baydon Road and Mant Close, and sites on any of them can send details for a fixed quote. Sites close to Wickham are covered too, including Easton (1 mile east), Weston (1 mile north), Clapton (1 mile south-west), East Shefford (2 miles north) and Shefford Woodlands (2 miles north-west). Bigger towns within reach include Newbury (6 miles south-east), Thatcham (8 miles east), Speenhamland (5 miles south-east), Hungerford (4 miles south-west), Lambourn (6 miles north-west) and Shaw (6 miles south-east).
Landmarks near Wickham
Locally, jobs take us to sites close to The Five Bells pub. Wickham’s nearest station is Kintbury station, roughly 3 miles south of the centre. A little further out are Hamstead Marshall 3 (3.4 miles south-east). Open spaces near Wickham include Sole Common Pond.
What we are called out for in Wickham
Three-sided adhesion is a frequent fault on new work. Fixed to three faces, the sealant rips the first time the joint opens.
If one of these sounds familiar, it’s time for a closer look:
- Old sealant on a refurbishment that needs stripping before new work
- Window and door perimeters that won’t pass inspection
- Oversized or tapered gaps around new frames
- Cracks opening in caulked internal joints
Historic houses such as Benham Park (3.7 miles south-east of Wickham) are a reminder of the older buildings in the wider area, where sealing against old stone, brick or timber needs compatible products.
Comparing quotes
- What site paperwork they can supply
- Their public liability cover
- How long is the guarantee, and what does it include?
- Will failed sealant be removed rather than covered?
Diagnose, treat, sign off
We begin with a short walk round with whoever looks after the building, to confirm the scope, the order of work and any areas we must keep clear. After that, any old or failed material is removed, each joint is prepared and the new sealant goes in. If others near Wickham need work, visits can be combined. You’ll have a fixed quote before work starts.
- Drawings, specification and programme come to us.
- We take off quantities and return a fixed quote.
- The sequence is agreed with the site manager.
- Plots or floors are sealed as they’re handed over.
- Joints are prepared, backed and sealed to the specification.
- After snagging, the work is handed over under our 12-month guarantee.
Preparing the site
- Explain the parking and delivery arrangements
- Have the specification and drawings to hand
- Flag any permit to work we’ll need
Get a fixed quote
Quotes are fixed against the scope you send, so you know the figure before anyone is on site. To ask for one, call 01277 525 020 or send details through our quote form.