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

Mastic contractors in Gurnard

Our CSCS-carded applicators take on mastic packages for new-build and refurbishment projects in Gurnard and the surrounding area. Send photos or drawings for a fixed quote.

  • Missed perimeter joints on a new elevation
  • Cracks opening in caulked internal joints
  • Failed sealant in an existing building being refurbished
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
London, the South East & Scotland
Constructionline member
Fully insured: £5m PL

Construction mastic in Gurnard

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

Construction mastic for commercial buildings in Gurnard

Getting a subcontractor through site induction should be simple. We are a Constructionline member and CHAS accredited, and every applicator holds a CSCS card, and we are fully insured. RAMS, an insurance certificate and CSCS details can be confirmed with the quote if you tell us what you need. We work on brick and block movement joints, floor and skirting junctions and cladding and panel joints, and the failures we are asked to look at most are cracks opening in caulked internal joints and mastic snags holding up handover. A specialist sealant contractor works differently from a general builder: in Gurnard, that means joint design, primers and backing rod as standard.

Conversions of older rural buildings near smaller places such as Gurnard bring stone, flint, brick and timber up against new glazing. Those joints need a sealant that suits an uneven, sometimes porous surface, and often a colour chosen for the building.

The 12-month guarantee covers our workmanship: the preparation, the sealing and the tooling. Damage, later alterations by others and movement beyond what the joint was designed for sit outside it.

Mastic Doctor team members lined up next to their branded vans outside an office building
Location
Gurnard (PO31)
Region
Isle of Wight
Cover
12 months on every job
Quote
Fixed quote, scope in writing
Call
01277 525 020
Page updated
3 November 2026

Your questions answered

Is Gurnard off your patch?

No. Small places get the same service as large ones. London and every South East county are within our area. Where we can, we group nearby jobs to make the most of each trip.

Does a coastal location like Gurnard affect which sealant is used?

It can, yes: buildings near the sea take more wind-driven rain, and salt in the air nearer the shore. That puts more weight on product choice, primers where the manufacturer specifies them, and correct joint sizing.

Who decides which product is used?

A specification, where there is one, decides it. If there isn’t one, it comes down to the joint: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.

How much does the work cost?

Each job is quoted on its own details. For yours, call the office on 01277 525 020 or email a schedule or drawings with a description of the work.

How long does a typical visit take?

The duration is planned around your programme and the access we’re given. We’ll give you an estimate of time on site when we quote.

Can the building stay open while you work?

Typically, yes. Phased work can be planned so areas stay in use.

Can you clear a mastic snag list before handover?

Yes. Share the list and photographs, and a fixed quote follows, with the work timed to your handover date.

When to call us in Gurnard

Value-engineered products sometimes end up in the wrong joints. A sealant that isn’t right for the substrate or the movement will fail ahead of time. We stick to the specified product, or put any alternative to you first.

It’s worth sending us details if you spot any of the following:

  • Oversized or tapered gaps around new frames
  • A mastic package split between trades with no clear owner
  • Window and door perimeters that won’t pass inspection
  • Internal caulk splitting as the building dries out

Hotel extensions and refits, at places such as New Holmwood Hotel (0.9 miles north-east of Gurnard), usually run between busy periods, so the sealing is squeezed into short windows.

Questions to ask before you book

  • Are they CHAS accredited or on Constructionline?
  • Do they follow the manufacturer’s priming guidance?
  • Whether old or failed sealant will be cut out, not overlaid
  • The terms of the workmanship guarantee

Choosing a commercial sealant contractor

Construction mastic in Gurnard: the local picture

With the shore within about 1 mile, Gurnard counts as a coastal location. 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. Gurnard has a number of hotels close by, all within 2 miles. Hotel extensions and refits normally have to fit around bookings, so mastic dates are tight.

Hospital estates such as St Mary's Hospital, 3.2 miles to the south of Gurnard, tend to grow and change in phases, often next to occupied wards, so facade and perimeter sealing has to fit the estates team’s plan. For contractors refurbishing units at places like Island Technology Park, 2.3 miles south-east of Gurnard, the mastic covers cladding panels, roller-door and window perimeters.

Gurnard is about 1 mile west of Cowes, in the Isle of Wight. Across the PO31 postcode area, the process is the same: details in, fixed quote out, then sealing and a 12-month guarantee. Across the Isle of Wight, 125 places are covered, including Gurnard. Our Portsmouth page has more on work in that area, about 11 miles away.

We take on mastic packages across the PO31 postcode area. For a building on Cow Lane, The Avenue and Shore Road or nearby, we can quote for mastic packages. We also cover Cowes (1 mile east), Northwood (1 mile south), Rew Street (1 mile south-west), Great Thorness (2 miles south-west) and Noke Common (2 miles south). Further afield, our area takes in Newport (4 miles south), Ryde (7 miles east), Sandown (10 miles south-east), Shanklin (11 miles south-east), Ventnor (12 miles south-east) and Oakfield (8 miles east). Island and remote sites need extra planning, with travel, ferry crossings where needed and weather to allow for, so mention the location when you speak to us on 01277 525 020 or send photos by email.

Near you in Gurnard

Recent enquiries here include premises near Cowes Enterprise College and The Portland Inn, among other places. Nearby you will also find St Mary's Hospital (3.2 miles south) and Isle of Wight Natural History Centre (0.5 miles south-east). The countryside around Gurnard includes Mill Hill and Briddlesford Nature Reserve.

Map of Gurnard © OpenStreetMap contributors

How the job changes by surface

Kitchens and utility areas

Commercial kitchens often need hygienic or food-safe sealants. We follow the specification and seal to a smooth, cleanable finish.

Window and door perimeters

Gaps around frames have to be within the sealant’s range. We check them during the first walk-round and flag any that need packing or adjusting before sealing starts.

Diagnose, treat, sign off

A typical day starts with protection: masking tape along the joint edges and sheeting over anything nearby. The work itself normally takes whatever the programme allows, since the work follows the trades as areas are released, and our waste is bagged and taken away as we go. If others near Gurnard need work, visits can be combined. A fixed quote is given before anything starts.

  1. We walk the site or review drawings to understand the package.
  2. You receive a fixed quote covering scope, products and sequence.
  3. Site paperwork is confirmed and our CSCS-carded applicators are inducted.
  4. Sealing follows the programme as areas are released.
  5. Any frame gaps or issues outside our scope are flagged to the site team.
  6. Final snagging is completed and the 12-month guarantee applies.

Preparing the site

  • Share the asbestos register for older buildings
  • Explain the parking and delivery arrangements
  • Let us know about inductions and permits

Ask for a quote

Photos, drawings or a schedule of the joints and a fixed quote comes back to you. Where a site visit makes more sense, we’ll arrange one.

Get a price

Related advice

Leave it or put it right?

Clearing snags piecemeal is tempting when handover is close. But one planned snagging pass through each area normally clears more for less disruption, and avoids repeated visits. We can run snagging as its own phase before handover. Around Gurnard, it’s better to renew all the failing joints at once, rather than one at a time. Send photos of each area and we will quote for the lot.

Pricing mastic packages depends on how many there are, their condition and the access, plus any specification you’re working to. Call for a quote.

Why appoint us

  • Commercial sealant work since 2005
  • CSCS-carded applicators
  • Workmanship guaranteed for 12 months
  • Specification-led, product-correct work

Take a look at how commercial sealant jobs are priced or our accreditations.

Building owners, agents and FMs in Gurnard

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.

FMs need a contractor who is easy to get on site. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we’ll confirm with the quote.

Aftercare for building managers

After handover, these steps help:

  • Brief following trades on areas that have been sealed
  • Check frame gaps are within the sealant’s range before sealing
  • Don’t schedule sealing before decorators and flooring are done
  • Keep scrapers and abrasive pads off new beads

Tell the builders’ clean team which areas have new sealant. Scrapers used on frames and worktops can nick or lift a new bead, so stick to soft cloths and gentle cleaners near sealant.

Oversized gaps are a problem better caught early. Filling a wide gap with sealant alone sets up a failure so packing or adjustment by the installer comes first. We raise them during our first walk of the area.

Accreditations

Trusted. Accredited. Insured.