Construction Mastic in Lewes
Construction mastic for Lewes, from a contractor working since 2005. Fully insured, with a 12-month guarantee.
- Early adhesion failures on new external joints
- Perimeter gaps outside the sealant’s range
- Missed perimeter joints on a new elevation
Construction mastic near Lewes
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Questions about Lewes
Do you take on work at healthcare sites like Lewes Victoria Hospital?
Yes, healthcare and care buildings are part of our work. We follow the site’s permits, sign-in and infection-control procedures in every area.
Will you plan work around the academic year at somewhere like University of Sussex?
Yes. Tell us the term dates, vacation periods and access windows, and we will plan the work around them. Tell us which site documents you need, such as RAMS, our insurance certificate or CSCS details, and they’re confirmed with the quote.
Can you follow the specification on our project?
Yes. Include it with the drawings when you ask for a quote, and we’ll price the work to it.
How do I request a quote?
You can use the quote form on this site; alternatively, speak to us on 01277 525 020 or email a schedule or drawings. Include photos or drawings if you have them.
Can you send site paperwork?
Let us know which documents the site needs, such as RAMS, an insurance certificate or CSCS details, and we’ll confirm them with the quote.
Is colour matching possible?
That 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.
Which sealant will you use?
A specification, where there is one, decides it. Without one, the joint decides: its movement, its surfaces and what it has to cope with.
Construction mastic in Lewes
Mastic is often where a new building first shows its quality to the client. Untidy or missed joints are among the commonest snag items. We seal so the snag list stays short, area by area through the programme. Most enquiries involve inconsistent sealant finishes from plot to plot and mastic snags holding up handover, on sanitary and kitchen joints, internal decorators’ caulk and cladding and panel joints. A specialist sealant contractor works differently from a general builder: in Lewes, that means joint design, primers and backing rod as standard.
For contractors on site in a town like Lewes, the mastic has to fit the programme: perimeters sealed before scaffold is struck, internal sealant after decoration, snags before handover. Send drawings and the programme and we will price to suit.
The 12-month guarantee covers our workmanship: the preparation, the sealing and the tooling. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.
- Where
- Lewes (BN7, BN8, BN6, RH15)
- Region
- East Sussex
- Cover
- 12 months on every job
- Quote
- Quoted before any work starts
- Telephone
- 01277 525 020
- Page updated
- 3 November 2026
From enquiry to sign-off
Working in a building that stays open takes some planning. The work area is signed and kept contained, with routes through the building left open and work section by section so the rest of the building stays in use. Town-centre premises in Lewes may have limited parking, so tell us what’s nearby. On estates and business parks it’s normally simpler.
- We price from the drawings, specification and programme you send.
- We return a fixed quote that ties the mastic package to your programme.
- You tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we confirm it with the quote.
- Areas are sealed plot by plot or floor by floor as the trades hand them over.
- Joints are cleaned, primed where the maker requires it, backed and sealed to the specification.
- Snags are cleared before handover and completed areas carry our 12-month guarantee.
What we need from you
- Share the asbestos register for older buildings
- Point out any areas we must not close
- Send any specification or drawings in advance
Request a quote
To get a fixed quote, call 01277 525 020 or email drawings and photos. You can also send details through our quote form.
Read more
Sites and facades in and around Lewes
A 2-mile radius around Lewes takes in several hotels. Hotel schemes tend to have fixed reopening dates, so the mastic is programmed tightly with the other trades. Lewes lies roughly 43 miles out from central London. Building activity in the commuter belt runs from new flats near stations to business park refurbishments, so mastic packages have to keep pace with busy programmes.
On a campus such as University of Sussex, 4 miles to the west of Lewes, new teaching buildings and residences are usually built and refurbished around the academic year. Further education sites such as East Sussex College, 0.7 miles to the south-east of Lewes, are extended and refurbished from time to time, with mastic often programmed into the summer break.
Lewes is about 7 miles north-east of Brighton, in East Sussex. If you are looking for construction mastic in Lewes, we can help, as we do across East Sussex. Across East Sussex, 308 places are covered, including Lewes. Sites around Brighton have their own page, about 7 miles away.
Commercial sites across BN7, BN8, BN6 and RH15 are covered. If your site is on Market Lane, Market Street and High Street or close by, send details and we will quote for mastic packages. Access to Lewes is via the A26 and A275, so getting applicators and materials to site is simple. Nearby places we also cover include South Malling (1 mile north-east), Southover (1 mile south-east), Cliffe (1 mile east), Offham (1 mile north-west) and Hamsey (1 mile north) for mastic packages. Nearby towns on our patch include Eastbourne (14 miles south-east), Seaford (8 miles south-east), Hailsham (11 miles east), Crowborough (14 miles north-east), Uckfield (8 miles north-east) and Newhaven (6 miles south). Lewes ranks among the main centres of East Sussex, with offices, shops, schools and other public and commercial buildings.
Local landmarks in Lewes
In Lewes, that means premises near Priory School, St Pancras Catholic Primary School and Railway Land. For rail, the closest station is Lewes station, about 0.6 miles south-east. Other landmarks nearby include Lewes Victoria Hospital (0.5 miles west) and Museum of Agricultural Bygones (3.9 miles east). The countryside around Lewes includes Offham Hill and Malling Down.
Different surfaces, different methods
Snagging before handover
Snags typically come from damage by following trades, missed joints or poor earlier work. Snagging can be included or priced separately.
External facade and movement joints
External movement joints often need primer, depending on the substrate. We prime where the manufacturer specifies, and seal only with a dry joint inside the product’s temperature range.
Do you need construction mastic in Lewes?
Three-sided adhesion is a frequent fault on new work. Fixed to three faces, the sealant rips the first time the joint opens.
What tends to prompt an enquiry:
- Failed sealant in an existing building being refurbished
- Sanitary sealant damaged by following trades
- Frame gaps too wide for sealant alone
- New external sealant already peeling away
New units and refits on sites such as Riverside Industrial Estate, less than half a mile east of Lewes, need their panel and perimeter joints sealed to the specification.
Questions to ask before you book
- How they handle RAMS and site documents
- Are they CHAS accredited or on Constructionline?
- Whether old or failed sealant will be cut out, not overlaid
- Is depth set with backing rod, or bond-breaker tape in shallow joints?
Towns and villages near Lewes
More services for Lewes
How the quote is worked out
These are the things that shape the price:
- Induction, permit and paperwork requirements
- How much existing material needs removing
- How accessible the joints are
- Joint width, depth and condition
There’s no price list, since every building and every scope is different. For a fixed figure, call for a quote and we will price your job on its own details.
Details that help us quote
A few photos plus some basic facts will normally do. Please tell us:
- Anything awkward about access or site hours
- Whether an asbestos survey exists
- The product your specification calls for
- Where the site is, with the postcode
Let us know the site, the scope and your timescale, and a fixed quote will follow. The easiest way is to ring 01277 525 020 or send photos by email.
Why act early in Lewes
It helps to bring the mastic subcontractor in before the package is urgent. Early involvement means gaps, products and access are sorted before the programme bites, which avoids last-minute problems. Called in at the end, the same issues surface during handover. A failed joint is easier to put right before damp shows inside. After a leak, there’s drying, repairs and redecoration on top.
Access can matter as much as the joints themselves: easy-to-reach joints are quicker than those that need equipment to get to. Mention the access as part of your enquiry.
Why us?
- Constructionline member for supplier checks
- Work to your specification and the manufacturer’s guidance
- Colour agreed before work starts
- One phone line for London, the South East and Scotland
Take a look at our cost guide or our accreditations.
Building owners, agents and FMs in Lewes
Building owners and managing agents use us on everything from one building to a spread of sites. Several sites can go on one quote, which keeps the paperwork simple.
As a CHAS accredited contractor and Constructionline member, we make supplier vetting simple. Our insurance certificate can be sent along with the quote.