
Construction and new-build mastic in Easton, Hampshire
Construction mastic for Easton, from a contractor working since 2005. Fully insured, with a 12-month guarantee.
- Missed perimeter joints on a new elevation
- Inconsistent sealant finishes from plot to plot
- Perimeter gaps outside the sealant’s range
Construction mastic for Easton sites
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Work for main contractors and building owners
For main contractors, we work as the sealant subcontractor, on new build and refurbishment alike. Programme, specification and site rules come first, and our applicators hold CSCS cards.
We work for building owners and managing agents on everything from one building to a spread of sites. Several sites can go on one quote, so there’s one set of paperwork to deal with.
How we handle construction mastic in Easton
Perimeter sealing outside needs a dry joint and the right temperature. Cold or damp mornings, frost and condensation on frames can all hold external sealing up so it helps to sequence elevations with some flexibility. Internal areas can usually carry on while the outside waits. Site teams most often ask us about old sealant on a refurbishment that needs stripping before new work and bath and shower joints scraped during the final clean, on floor and skirting junctions, cladding and panel joints and window and door perimeters. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: on jobs in Easton, preparation and product choice get the time they need.
Sites around smaller places like Easton can be a fair drive from suppliers, so we come with everything the package needs. Drawings, photographs and the programme let us give a fixed quote.
Our workmanship is guaranteed for 12 months. If a joint we sealed fails because of how it was installed, we come back and put it right.
- Place
- Easton (SO21)
- Region
- Hampshire
- Guarantee
- 12 months on our workmanship
- Price
- Quoted before any work starts
- Call
- 01277 525 020
- Last updated
- 3 November 2026

Should maintenance staff do it?
General builders and handymen seal joints, but it isn’t their main trade. A specialist prepares properly, controls joint depth and picks a product with the right movement class.
There’s also the paperwork. Many sites expect CSCS cards, RAMS and proof of insurance, and our CSCS-carded applicators are used to working under those rules.
Do you need construction mastic in Easton?
On construction sites, joints normally fail early because of when they were sealed, not what was used. Sealing before decorators, flooring or other trades have finished leaves joints exposed to damage, so they end up back on the snag list.
What tends to prompt an enquiry:
- Internal caulk splitting as the building dries out
- Old sealant on a refurbishment that needs stripping before new work
- Sealant knocked or painted over by other trades
- Mastic snags holding up handover
University estates such as University of Winchester, 3 miles to the south-west of Easton, tend to have a rolling programme of new buildings and refurbishments, each with window perimeters and facade joints to seal.
Comparing quotes
- How the joint faces will be prepared and primed
- Their plan for phasing and protecting the area
- Their public liability cover
- What the guarantee covers, and for how long
FAQs: Easton
Is Easton off your patch?
Not at all: smaller places are covered as well as towns. London and every South East county are within our area. We plan jobs in smaller places so return trips are kept to a minimum.
Is hospital work, at somewhere like Leigh House Hospital, something you do?
Yes. We work in healthcare settings as well as offices and schools. Work is phased so departments keep running, under the site’s own rules.
What happens if the weather stops external sealing?
External sealing goes ahead only with a dry joint inside the product’s temperature range. Wet or cold joints cause adhesion problems.
When can you be on site?
The office is staffed Monday to Friday, from 8am until 5pm. Let us know your site hours and access windows, and the work will be planned around them.
Do you do internal caulk as well as external mastic?
The scope comes from the specification and drawings, but frames, sanitary, kitchens, caulk where specified and snagging are typical.
Do you seal on top of existing sealant?
No, never. Overlaying old sealant is a frequent cause of early failure, so everything comes out first.
Is the mastic package guaranteed?
The work is guaranteed for 12 months. Keeping other trades off finished joints prevents most problems.
Cost factors for mastic packages
To price the job, we consider:
- Phasing around occupants
- Quantities, in metres or numbers
- Backing rod, priming and other preparation
- Specialist products, such as fire-rated or hygienic sealants
The work involved drives the cost: stripping out, preparation, sealing, access and phasing. Call for a quote and we’ll explain how it’s made up.
What we need to price the job
It doesn’t need to be a full survey. A few details are enough to get going:
- Where the site is, with the postcode
- When you need the work done
- Access details, including height
- Rough lengths or quantities, or drawings if you have them
Need a figure for a tender or a budget? Send the scope and any drawings, and we will return a fixed quote that you can work with. For a chat about it beforehand, phone 01277 525 020 or use the quote form.
From enquiry to sign-off
We bring the products specified for the job, along with primers and backing rod. Any old material is cut back to clean, sound faces, primer goes on where the manufacturer specifies it, and each bead is tooled to a neat concave finish. For a building around Easton, tell us how to find it and who will meet us. Send that with the details and we will confirm the plan with the quote.
- We start with the drawings, specification and programme.
- Quantities are measured and a fixed price returned.
- The sequence is agreed with the site manager.
- Each area is sealed when it’s released.
- Joints are prepared, backed and sealed to the specification.
- Snags are cleared and the package signed off with our 12-month guarantee.
Preparing the site
- Tell staff and tenants when we will be in
- Confirm the product named in the specification
- Tell us what induction or permit system the site runs
Quotes
We quote a fixed sum against the scope you give us, so you know the figure before anyone is on site. To start the process, call the office on 01277 525 020 or email drawings and photos.
Read more
Why act early in Easton
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. Leave it late and they turn up on the snag list. For buildings around smaller places like Easton, water damage can go unnoticed for longer, especially where a building isn’t used daily, which gives a failed joint time to do damage. Resealing early avoids that.
Access can matter as much as the joints themselves: easy-to-reach joints are quicker than those that need equipment to get to. Tell us how the joints are reached and call for a quote.
Why clients in Easton choose us
- Public liability insurance in place
- Colour options checked against the specified product
- One contact handling all your sites
- Standard and matched colours in many product ranges
Take a look at what affects the cost and how we’re accredited.
Mastic packages on Easton sites
Easton has a number of hotels close by, all within 2 miles. When hotels extend or refit, the work is usually squeezed between peak periods, mastic included. Easton sits in one of the drier corners of the country, the South East. That doesn’t stop wet spells, or frosty starts that leave panels too damp to seal, so external mastic is timed for workable conditions and agreed with the site manager.
Projects at colleges like Peter Symonds College, 2.5 miles south-west of Easton, tend to run to term dates, so the mastic is planned tightly. When a school such as Peter Symonds College is extended or refurbished, the mastic package is often squeezed into the holidays.
Easton is about 3 miles north-east of Winchester, in Hampshire. Easton sits inside our coverage, with the same fixed quotes and 12-month guarantee as everywhere else. Easton is one of 723 places in Hampshire on our list. For work in that direction, see our Southampton page, about 13 miles away.
We take on mastic packages across the SO21 postcode area. Among the streets we cover are Easton Lane, Malthouse Close and Chapel Lane. Just outside Easton, we also work in Abbots Worthy (1 mile north-west), Martyr Worthy (1 mile north-east), Kings Worthy (1 mile west), Itchen Abbas (2 miles east) and Winnall (2 miles south-west). A short drive away, we cover Basingstoke (14 miles north-east), Winchester (3 miles south-west), Eastleigh (9 miles south), Andover (13 miles north-west), Totton (15 miles south-west) and Chandler's Ford (9 miles south-west).
What’s near Easton
Locally, jobs take us to sites close to The Cricketers Inn. The nearest railway station is Winchester station, about 2.4 miles south-west of the centre. A little further out are Wolvesey Castle (2.4 miles south-west) and St John's Rooms And Chapel (2.3 miles south-west). Not far away are Twyford Down and Winnall Moors.