The Mastic Doctor team standing beside their branded vans outside an office building
Isle of Wight · England

Facade Sealing contractors in Locksgreen

Facade joint and window perimeter sealing on commercial buildings in Locksgreen and across the Isle of Wight. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.

  • Weathered facade joints that have lost their grip
  • Perimeter sealant that has split or peeled away
  • Unsightly perimeter sealant on a visible elevation
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
Covering the South East & Scotland
CHAS & Constructionline
Fully insured: £5m PL

Facade sealing for Locksgreen sites

Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.

From enquiry to sign-off

Diagnose, treat, sign off: every visit follows that pattern. First comes an inspection and agreement on scope, then the work is carried out to the specified product and detail, and we finish with a walk round so the work can be signed off. For work around Locksgreen, we aim to finish in one visit, so we ask for photographs and rough sizes first. Then the right materials arrive with us.

  1. We plan access and the order of elevations with the client.
  2. Weather and temperature are checked against the product’s limits.
  3. Each joint is cut out and the edges inspected.
  4. Faces are cleaned, primed where needed and backed.
  5. Facade-grade sealant goes in and is tooled to a tidy concave profile.
  6. We hand over with our 12-month workmanship guarantee.

Before we start on site

  • Warn occupants and staff about the work
  • Send asbestos survey details if the building is pre-2000
  • Explain the parking and delivery arrangements

Get a fixed quote

We quote a fixed sum against the scope you give us, so the cost is agreed before work starts. To start the process, phone 01277 525 020 or email drawings and photos.

Get a price

Advice

How we handle facade sealing in Locksgreen

A good facade joint depends on design as much as product. The width has to suit the expected movement and the sealant’s movement capability, and closed-cell rod sets the depth, keeping the bond to two faces, often at around 2:1 width to depth, as the manufacturer advises. Most enquiries involve staining on stone next to old sealant and weathered joints at frame-to-structure perimeters, across cladding panel joints, shopfront frames and perimeter joints where frames meet the structure. Searching for sealant specialists in Locksgreen? We’ve been sealing commercial buildings since 2005, with CSCS-carded applicators.

For a site near Locksgreen, the mastic visit is planned so the right sealants, primers and backing rod are on hand. Drawings, photographs and the programme let us give a fixed quote.

We stand by our work: 12 months, guaranteed. It covers how we prepared and applied the sealant, and we come back if anything isn’t right.

The Mastic Doctor team beside their liveried vans in front of an office building
Place
Locksgreen (PO30)
Wider area
Isle of Wight
Cover
12 months on every job
Quote
Quoted before any work starts
Call
01277 525 020
Updated
3 November 2026

Your questions answered

Does the sea air around Locksgreen change the choice of sealant?

It can. Coastal exposure works external joints harder than inland weather. We check the specified product suits the exposure and pay close attention to preparation.

Do you take on work at healthcare sites like St Mary's 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.

Can you look at water coming in around a frame?

Yes. Photos help, and you can give us a call on 01277 525 020 or email drawings and photos to arrange a visit. Failed perimeter sealant is a common cause, but not the only one.

Will you just go over the old sealant?

No. Failed sealant is removed and the faces cleaned back to sound, dry material first, because fresh silicone will not bond with aged silicone.

Can weather delay the job?

For external joints, yes. Sealant needs a dry joint and a temperature within the product’s range, so frost, rain or cold mornings can delay outside work. Inside work is seldom held up.

How long does a typical visit take?

We plan the time on site around your programme and access. You’ll have an expected duration with the quote.

Can you work to our specification?

Yes. Send it with your enquiry, and we will price the work to it.

Sites and facades in and around Locksgreen

Locksgreen lies within about 2 miles of the sea. Schemes this close to the sea see their facade joints tested by wind and rain from the day they’re sealed, which puts weight on correct joint sizing, priming and a sealant suited to the exposure. Locksgreen sits in one of the drier corners of the country, the South East. 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.

With historic properties like Swainston Manor, 1.7 miles to the south of Locksgreen, in the area, refurbishment work often meets old masonry that needs compatible sealants. For a contractor working at a hospital such as St Mary's Hospital, 3.1 miles to the east of Locksgreen, perimeter and facade sealing is planned around patients and deliveries. Recladding or extending a unit at a site like Porchfield Business Park (to the west of Locksgreen) brings panel joints and frame perimeters into the programme.

Locksgreen is about 3 miles west of Newport, in the Isle of Wight. Our applicators travel to Locksgreen for work on facade joints, handled exactly as we handle every other area. Across the Isle of Wight, 125 places are covered, including Locksgreen. Southampton is covered too, around 14 miles from Locksgreen.

Postcode districts covered here: PO30 for facade joints. Just outside Locksgreen, we also work in Porchfield (1 mile north-east), Newtown (1 mile west), Great Thorness (1 mile north-east), Forest Side (2 miles east) and Noke Common (3 miles east). Nearby towns on our patch include Newport (3 miles east), Ryde (9 miles east), Cowes (4 miles north-east), Sandown (10 miles south-east), Shanklin (10 miles south-east) and Ventnor (11 miles south-east). For island and remote sites, we plan travel and materials carefully, so include the location in your enquiry.

What’s near Locksgreen

Recent enquiries here include premises near Sportsman's Rest pub, among other places. Nearby you’ll also find Calbourne Water Mill And Rural Museum (3 miles south-west) and Carisbrooke Castle (3.1 miles south-east). The countryside around Locksgreen includes Brighstone Down.

Map of Locksgreen © OpenStreetMap contributors

How the job changes by surface

Window and door perimeters

Window and door perimeters make up most facade sealing work. A low-modulus, neutral-cure product suits most frame-to-wall joints finished to throw water off the joint.

Brick and stone facades

Joints in natural stone need care to avoid staining. The specified stone-compatible sealant is what we use, and mask the edges carefully.

Why it’s worth doing now in Locksgreen

Scaffold or access already on site makes resealing much simpler. Combine it with planned external works and you only arrange access once, saving a second set-up. Converted and older buildings near places like Locksgreen tend to move, and aged sealant cracks. A sealant with the right movement capability, correctly sized, lasts far better.

Quantities, awkward access and phased working all shape the price. Site requirements like inductions and permits play a part as well.

What you get with us

  • Over 20 years of commercial sealing
  • A Constructionline member, so easy to vet
  • CSCS-carded applicators
  • 12 months’ guarantee on every job

Read our cost guide or how we’re accredited.

Looking after the joints

Every sealant joint needs some looking after, and their life depends on movement, exposure, cleaning and use. Our advice:

  • Keep pressure washers away from fresh sealant
  • Add perimeter sealant to planned maintenance checks
  • Plan facade sealing alongside redecoration
  • Note when each elevation was last resealed

If new signage, brackets or services are fixed through a sealed joint, the seal needs making good. Ask the installer to reseal it properly using a matching sealant.

Don’t wait for a full elevation to fail. Small repairs stop small leaks becoming large ones inside the building.

Doing it in-house

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, which is what makes a joint last.

Paperwork matters too. Many sites expect CSCS cards, RAMS and proof of insurance, and our CSCS-carded applicators are used to working under those rules.

Work for main contractors and building owners

For main contractors, we work as the sealant subcontractor, on new build and refurbishment alike. We work to your programme, your specification and your site rules, and our applicators hold CSCS cards.

As a CHAS accredited contractor and Constructionline member, we’re straightforward to vet for your supplier list. Our insurance certificate can be sent along with the quote.

Accreditations

Trusted. Accredited. Insured.