The Mastic Doctor team standing beside their branded vans outside an office building
Hampshire · England

Construction and new-build mastic in Fawley, Hampshire

Mastic packages for new-build and refurbishment projects throughout Fawley and nearby, carried out by CSCS-carded applicators. CHAS accredited and fully insured.

  • Early adhesion failures on new external joints
  • Caulk cracking where joints are moving more than expected
  • Sanitary sealant damaged by following trades
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Signed off, with 12 months’ guarantee.
London, the South East & Scotland
Constructionline member
£5m public liability

Construction mastic for businesses in Fawley

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

How we handle construction mastic in Fawley

We work to the specification and the programme. If a product is named, that’s what goes in; any alternative we suggest is put to you before anything changes. Backing, primer and depth follow what the sealant maker sets out so the detail on the drawing is what ends up on site. Most enquiries involve sealant knocked or painted over by other trades and frame gaps too wide for sealant alone, across window and door perimeters, internal decorators’ caulk and brick and block movement joints. Facilities teams, main contractors and managing agents in Fawley tend to want the same three things: a clear scope, tidy work and joints that don’t fail again.

For a site near Fawley, the mastic visit is planned so the right sealants, primers and backing rod are on hand. Send drawings or photos and the programme and we will quote to suit.

Every job is signed off with a 12-month guarantee. It’s a plain promise: if our work fails within that year, we put it right.

Where
Fawley (SO45)
Region
Hampshire
Cover
12 months on every job
Price
A fixed quote before we start
Phone
01277 525 020
Last updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

Different surfaces, different methods

Window and door perimeters

A frame gap that’s too wide can’t just be filled with sealant. Gaps outside the product’s range are raised with the site team before sealing starts.

Bathrooms, en suites and washrooms

Sanitary joints around baths, showers, basins and WCs need anti-mould sanitary silicone. Joints are cleaned, sealed and tooled neatly, and any bath is loaded with water first where that’s the agreed method.

When to bring in a specialist

For a quick touch-up, site staff may be fine, but anything bigger is another matter: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.

Certain joints really need a specialist: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. A poor seal in places like these tends to cost more to put right later.

How a job runs

Tell us your site hours and access windows and we’ll plan around them. On the day, the work area is kept contained and tidy, and your contact hears from us before we move to the next area. Rural sites near Fawley may need directions, gate codes or a contact on site. Send that with the details and we’ll confirm the plan with the quote.

  1. First we look at the scope on site or from drawings.
  2. A fixed quote sets out scope, products and phasing.
  3. Paperwork is agreed and applicators are inducted on site.
  4. We seal plot by plot or floor by floor in line with the programme.
  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

  • Warn occupants and staff about the work
  • For older buildings, check the asbestos register before work
  • Share your working hours and any access restrictions

Request a quote

To get a fixed quote, give us a call on 01277 525 020 or use the quote form. You can also send details through our quote form.

Get a price

Read more

Cost factors for mastic packages

Your fixed quote is built from the real scope. It allows for:

  • Phasing around occupants
  • Removal of failed or old sealant
  • Which sealant the job calls for
  • Induction, permit and paperwork requirements

Every site prices differently: the joint sizes, the specified product, access and working hours each have a bearing. A fixed quote follows once we understand the job.

Before you send an enquiry

We can often quote from photographs and a few details. It helps to include:

  • Photos of the joints, close up and from further back
  • Your programme or deadline
  • Asbestos survey details if the building is older
  • Whether the building will be occupied during the work

Send details, get a quote, we seal, guaranteed: that’s how every job runs. To take the first step, speak to us on 01277 525 020 or email drawings and photos.

Your questions answered

Is Fawley too far out for you?

Not at all: smaller places are covered as well as towns. Our area covers London and the South East counties. Good photos up front let us bring everything on the first visit.

Our building in Fawley is near the coast: does that change the sealant?

It can. Coastal exposure works external joints harder than inland weather. We choose the product for the exposure, prime where the manufacturer requires it and size the joint for its movement.

Can you seal external joints in wet or cold weather?

Outside, the joint has to be dry and the temperature within the product’s limits. Frosty or damp mornings can hold up external sealing, so internal areas are often done on those days.

Which sealant will you use?

Where there’s a specification, we use the product it names. If not, we choose for the movement, the surfaces and the conditions, in line with the manufacturer’s guidance.

Are you insured?

Yes. Our insurance certificate can be sent alongside the quote.

Is colour matching possible?

That depends on the product specified. Some ranges offer many colours, others very few, so we will confirm the colours available for the specified product with the quote.

Do you use the sealant named in the specification?

The specification decides the product. Product standards such as BS EN 15651 are often named in specifications.

What we’re called out for in Fawley

Value-engineered products sometimes end up in the wrong joints. A general-purpose silicone on a facade or a caulk in a wet area won’t perform like the specified product. We stick to the specified product, or put any alternative to you first.

These are often picked up first by site or facilities staff:

  • Missed perimeter joints on a new elevation
  • Early adhesion failures on new external joints
  • Sealant knocked or painted over by other trades
  • Different trades sealing to different standards

Work at a hotel such as Falcon Hotel, under half a mile to the south-west of Fawley, tends to be programmed around bookings, mastic included.

What your quote should include

  • 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
  • How long is the guarantee, and what does it include?

How to choose a sealant contractor

Construction mastic around Fawley: what changes locally

The sea is no more than about 1 mile from Fawley. Facades and window perimeters on coastal schemes take more wind-driven rain, and salt air nearer the shore, so joint design, primers and product choice deserve extra care. The South East is one of the drier parts of the UK. That doesn’t stop wet spells, or frosty starts that leave panels too damp to seal, so the external programme keeps a little slack.

For contractors refurbishing units at places like Glenmore Business Park, 2.1 miles north-west of Fawley, the mastic covers cladding panels, roller-door and window perimeters. Projects at schools like Fawley Infant School work to term dates, so mastic is programmed tightly.

Fawley is about 3 miles south-east of Hythe, in Hampshire. Commercial clients in Fawley can call on us for mastic packages, as part of our coverage of Hampshire. Fawley is one of 723 places in Hampshire on our list. We also cover Southampton, some 7 miles away.

Postcode districts covered here: SO45. Streets here include The Square, Whites Lane and Forge Lane, and sites on any of them can send details for a fixed quote. Nearby places we also cover include Stonehills (1 mile south-east), Ashlett (1 mile east), Sprat's Down (1 mile south), Blackfield (1 mile south-west) and Calshot (1 mile south-east). Bigger towns within reach include Gosport (9 miles east), Eastleigh (10 miles north), Fareham (7 miles east), Totton (9 miles north-west), Chandler's Ford (11 miles north) and Hedge End (6 miles north).

Local landmarks in Fawley

Around Fawley, our work takes us to commercial buildings near Falcon Hotel and The New Forest Academy. The closest station to Fawley is Hamble station, about 3.2 miles north of the centre. Nearby you will also find Coldeast (4.2 miles north-east) and Calshot Castle (1.9 miles east). For a walk, there’s Mercury Marshes.

Map of Fawley © OpenStreetMap contributors

Leave it or put it right?

It helps to bring the mastic subcontractor in before the package is urgent. We can check joint widths, flag frames with gaps that won’t seal and confirm products against the specification, which avoids last-minute problems. Called in at the end, the same issues surface during handover. One visit to deal with every failing joint makes more sense than several trips to a place like Fawley, rather than one at a time. Send photographs of each area and we’ll quote for the lot.

There’s no price list, since every building and every scope is different. Call for a quote.

Why choose Mastic Doctor in Fawley

  • Fixed quotes based on photographs, drawings or a visit
  • Matching to RAL references, product permitting
  • Specification-led, product-correct work
  • Colour options checked against the specified product

Read our cost guide or our accreditations and insurance.

Accreditations

Trusted. Accredited. Insured.