Construction Mastic in Selborne
We carry out mastic packages for new-build and refurbishment projects in Selborne and the surrounding area. Send photos or drawings for a fixed quote.
- Old sealant on a refurbishment that needs stripping before new work
- Inconsistent sealant finishes from plot to plot
- Sanitary sealant damaged by following trades
Construction mastic for businesses in Selborne
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Construction mastic in Selborne, done properly
On a new build, the mastic package is one of the last trades through each area, so it lands at exactly the point the programme is tightest. We work as a mastic subcontractor to main contractors and developers on schemes in Selborne. We work on brick and block movement joints, window and door perimeters and cladding and panel joints, and the usual reasons a site gets in touch are missed perimeter joints on a new elevation and inconsistent sealant finishes from plot to plot. Facilities teams, main contractors and managing agents in Selborne tend to want the same three things: a fixed quote, no surprises on site and a 12-month guarantee behind the result.
For a site near Selborne, the mastic visit is planned so the right sealants, primers and backing rod are on hand, timed to the stage the job has reached. Send drawings or photographs and the programme and we will quote to suit.
The 12-month guarantee is for workmanship rather than wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we’re clear about what is covered before work starts.
- Where
- Selborne (GU34)
- Wider area
- Hampshire
- Cover
- 12 months on our workmanship
- Quote
- Fixed quote, scope in writing
- Call
- 01277 525 020
- Last updated
- 3 November 2026
Facades, frames and programmes in Selborne
Selborne is about 46 miles from central London. Towns within reach of London tend to keep building, from flats to offices and schools, and main contractors there need mastic that keeps to the programme. The South East is one of the drier parts of the UK. Winter mornings still bring frost and condensation on frames and panels, so we time external mastic for dry faces and agree it with the site team.
Projects at schools like Selborne Church of England Primary School work to term dates, so mastic is programmed tightly. For a contractor working at a hospital such as Alton Community Hospital (3.5 miles north-west of Selborne), perimeter and facade sealing is planned around patients and deliveries. For contractors refurbishing units at places like Southlands Industrial Park (1.9 miles east of Selborne), the mastic covers cladding panels, roller-door and window perimeters.
Selborne is about 4 miles south of Alton, in Hampshire. We cover Selborne, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. Across Hampshire, 723 places are covered, Selborne among them. There’s a separate page for Portsmouth, roughly 21 miles from Selborne.
We take on mastic packages across the GU34 postcode area. We cover commercial and managed buildings on Huckers Lane, Ganders Close and Selborne Road. Sites close to Selborne are covered too, including Newton Valence (1 mile west), Empshott (2 miles south-east), Lower Green (3 miles south), Hawkley (3 miles south) and Oakshott (4 miles south). A short drive away, we cover Basingstoke (13 miles north-west), Fleet (13 miles north), Horndean (14 miles south), Aldershot (13 miles north-east), Alton (4 miles north) and Waterlooville (15 miles south).
Landmarks near Selborne
In Selborne, that means premises near The Jubilee Tap. For rail, the closest station is Alton station, about 3.8 miles north. Well-known places in the area include The Romany Museum (under half a mile south-east) and Alton Community Hospital (3.5 miles north-west). Open spaces near Selborne include Selborne Hill and Deadwater Valley.
Work for main contractors and building owners
For main contractors, we work as the sealant subcontractor on new-build and refurbishment projects. Programme, specification and site rules come first.
When you manage a building on behalf of an owner, clear figures and clear communication matter. You get a fixed quote, an agreed scope and a walk round at the end, plus a 12-month guarantee.
Our process
Our CSCS-carded applicators arrive with the sealants, primers and backing rod the job calls for. Joint faces are cleaned back to sound, dry surfaces, the manufacturer’s primer is applied where it’s called for, and the sealant is tooled off neatly. Smaller jobs around Selborne can be grouped with others nearby. 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.
- We agree with the site team which areas come first.
- Plots or floors are sealed as they’re handed over.
- Every joint is cleaned, set to depth and sealed with the specified product.
- After snagging, the work is handed over under our 12-month guarantee.
Preparing the site
- Share your working hours and any access restrictions
- Explain the parking and delivery arrangements
- Warn occupants and staff about the work
Quotes
Let us know the site, the scope and your timescale, and a fixed quote will follow. To get it moving, ring 01277 525 020 or email a schedule or drawings.
Related advice
Towns and villages near Selborne
Also in Selborne
How the job changes by surface
Kitchens and utility areas
Kitchen joints are sealed after fitting and before final clean. A kitchen-suitable sealant is used.
External facade and movement joints
External movement joints often need primer, depending on the substrate. Primer goes on where the sealant maker calls for it, and seal only with a dry joint inside the product’s temperature range.
When it isn’t the sealant
A few problems need another trade or a different fix, and we point that out rather than sealing over them:
- Joint design decisions that belong to the architect or engineer
- Frame gaps too wide for sealant, which the installer needs to correct
- Rework caused by others damaging completed areas
If you are not sure, just phone 01277 525 020 or email drawings and photos and we will give you a straight answer.
Where we work in Selborne
- Window and door perimeters
- Brick and block movement joints
- Floor and skirting junctions
- Sanitary and kitchen joints
- Cladding and panel joints
- Internal decorators’ caulk
Looking after the joints
Keep the joints in good shape with a few simple steps:
- Bring the mastic contractor in after the last trades are through
- Ask installers to correct oversized gaps first
- Brief following trades on areas that have been sealed
- Use the product the specification names
A new structure shifts as it loses construction moisture. The right product in each joint copes with that, but caulk in a joint that moves more than expected may crack. If that happens, let us know.
Sealing outside when the joint is damp or too cold leads to poor adhesion. Holding off until conditions suit avoids callbacks so external sequencing builds in some flexibility.
FAQs: Selborne
Is Selborne too small for you to travel to?
Not at all. Selborne is within our area. Our area covers London and the South East counties. We plan jobs in smaller places so return trips are kept to a minimum.
Can you work at a site such as Southlands Industrial Park, by Selborne?
Yes. Our area takes in Selborne and its surroundings, with estates and business parks such as Southlands Industrial Park included. Send details of the unit and the work through our quote form for a quick quote.
What about RAMS and site documents?
Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we will confirm with the quote.
Is colour matching possible?
That depends on the product specified. Some ranges are wide, others limited, so the available colours are confirmed with the quote.
Can you follow the specification on our project?
Yes. We follow the specification, along with the manufacturer’s installation guidance.
How do you deal with asbestos in old sealant?
Some older mastics, especially in pre-2000 buildings, can contain asbestos. We check the asbestos register before cutting out old sealant in an older building, and if asbestos is suspected, work stops until it’s tested. We don’t remove asbestos-containing materials.
Will you stick to the specified products?
The specification decides the product, and we will raise it if something in it doesn’t suit the joint. Product standards such as BS EN 15651 are often named in specifications.
What affects the price in Selborne
The price varies from site to site. It mainly depends on:
- Induction, permit and paperwork requirements
- Backing rod, priming and other preparation
- Quantities, in metres or numbers
- Travel to remote or island sites
Cost follows what’s involved: stripping out, preparation, sealing, access and phasing. Call for a fixed quote.
What we need to price the job
There’s no need for a formal survey. These details are enough to start:
- Asbestos survey details if the building is older
- Anything awkward about access or site hours
- The site address and postcode
- Any specification or named product
Send us photographs, drawings or a joint schedule and a fixed quote comes back to you. Where a site visit makes more sense, we’ll arrange one.