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

Construction and new-build mastic in Farringdon, Hampshire

We carry out mastic packages for new-build and refurbishment projects in Farringdon and the surrounding area. Send details for a fixed quote.

  • Failed sealant in an existing building being refurbished
  • Bath and shower joints scraped during the final clean
  • External joints sealed in damp or cold conditions that are now failing
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Signed off, with 12 months’ guarantee.
London, the South East & Scotland
CHAS accredited
£5m PL insurance

Construction mastic across Farringdon

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

Construction mastic in Farringdon, done properly

Site managers want applicators who turn up with the right cards and paperwork. We’re a Constructionline member and CHAS accredited, and every applicator holds a CSCS card, and we are fully insured. Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote. Site teams most often ask us about sealant knocked or painted over by other trades and failed sealant in an existing building being refurbished, on internal decorators’ caulk, sanitary and kitchen joints and cladding and panel joints. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, the work in Farringdon is the same: the right product in a properly prepared joint.

In the countryside around places like Farringdon, conversion schemes put new frames into old stone, flint, brick or timber. Those joints need a sealant that suits an uneven, sometimes porous surface, and often a colour chosen for the building.

Every job is signed off with a 12-month guarantee. The promise is simple: if the work we did fails within twelve months, we return to fix it.

Mastic Doctor team members lined up next to their branded vans outside an office building
Where
Farringdon (GU34)
Region
Hampshire
Guarantee
12 months on our workmanship
Quote
Fixed quote, scope in writing
Telephone
01277 525 020
Updated
3 November 2026

Aftercare for building managers

Cleaning and maintenance staff play a part too. Share these points with them:

  • Get the mastic subcontractor involved early in the programme
  • Don’t schedule sealing before decorators and flooring are done
  • Use the product the specification names
  • Ask cleaners to use soft cloths around fresh sealant

Expect some settlement in the first months. The right product in each joint copes with that while rigid fillers and caulk can crack where movement is larger. We can advise if a joint needs a different product.

Leaving the mastic snag list to the end squeezes everyone. A planned close-out through each area as it completes keeps the list short.

Quoting for work in Farringdon

These are the things that shape the price:

  • Joint width, depth and condition
  • Induction, permit and paperwork requirements
  • Removal of failed or old sealant
  • Working within restricted access windows

The work involved drives the cost: stripping out, preparation, sealing, access and phasing. Call for a quote and we will explain how it’s made up.

Sending details for a quote

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

  • Your programme or deadline
  • Whether an asbestos survey exists
  • The site address and postcode
  • Drawings or a marked-up plan, if available

For a fixed quote, phone 01277 525 020 or send details through our quote form with the site address and an outline of the work. Our quote form is another easy route.

FAQs: Farringdon

Is Farringdon 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.

Can you work on a hospital site such as Alton Community Hospital?

Yes. We work in healthcare settings as well as offices and schools. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.

Does weather matter for sealant work?

Outside, yes. The joint has to be dry and within the product’s temperature range, so frost, rain or cold mornings can delay outside work. Internal work is rarely affected.

How soon can the area be used again?

That comes down to the sealant and the temperature. Some products skin over quickly but need longer to cure fully, so we’ll confirm the curing time on the day.

Do you need to see the site first?

It depends on the job. Straightforward work can often be priced from photographs and measurements, and bigger or more complex jobs normally get a visit.

Can you work plot by plot or floor by floor?

The programme sets the job. Tell us the sequence and we will plan applicators around it so sealing follows the trades.

What guarantee comes with a mastic package?

The work is guaranteed for 12 months, covering how we sealed. Protecting sealed areas from following trades helps avoid damage.

Contractors’ notes for Farringdon

Farringdon is about 47 miles from central London. Construction around the commuter belt mixes station-side flats with refurbished offices and units, so mastic packages have to keep pace with busy programmes. Farringdon sits in one of the drier corners of the country, the South East. Still, external mastic needs dry faces within the maker’s temperature limits, which isn’t every day, so the external programme keeps a little slack.

Extensions at sites like Alton Community Hospital, 2 miles to the north of Farringdon, normally sit beside working departments, and the mastic follows strict access rules. Older buildings in the area around Farringdon, such as Bentworth Hall, 3.7 miles to the north-west of Farringdon, need care when sealed: the product has to suit soft or historic materials. When units on a site such as Farringdon Industrial Centre, under half a mile to the west of Farringdon, are refurbished or reclad, the panel joints and window perimeters are part of the mastic package.

Farringdon is about 3 miles south of Alton, in Hampshire. Any commercial site in Farringdon is covered. We work across 723 places in Hampshire, large and small. There’s a separate page for Portsmouth, roughly 21 miles from Farringdon.

We take on mastic packages across the GU34 postcode area. Streets here include Hall Lane, Crows Lane and Gaston Lane, and sites on any of them can send details for a fixed quote. Just outside Farringdon, we also work in Upper Farringdon (1 mile north-east), Lower Farringdon (1 mile west), Chawton (2 miles north), Hartley Mauditt (2 miles east) and Alton (3 miles north). Further afield, our area takes in Basingstoke (12 miles north-west), Winchester (15 miles west), Fleet (13 miles north-east), Horndean (14 miles south), Aldershot (14 miles north-east) and Petersfield (8 miles south).

Landmarks near Farringdon

Recent enquiries here include premises near Rose and Crown Inn. The nearest railway station is Alton station, roughly 3 miles north. A little further out are The Romany Museum (2.3 miles south-east) and Alton Community Hospital (2 miles north). Not far away are Selborne Hill.

Map of Farringdon © OpenStreetMap contributors

Leave it or put it right?

Some packages split mastic across the window fitter, kitchen fitter and plumber. The result tends to be uneven finishes and arguments about who should seal what. A single mastic package gives one point of responsibility. One visit to deal with every failing joint makes more sense than several trips to a place like Farringdon. Photos of every joint help us quote for the whole job.

Access can matter as much as the joints themselves: joints within easy reach take less time than ones that need access equipment. Tell us how the joints are reached and call for a quote.

Why choose Mastic Doctor in Farringdon

  • Fully insured
  • Work to your specification and the manufacturer’s guidance
  • Over 20 years of commercial sealing
  • CHAS accredited contractor

Take a look at our cost guide or how we’re accredited.

On site: what to expect

Before any cutting starts, the area is protected: masking tape along the joint edges and sheeting over anything nearby. The work itself normally takes a few days on a modest refurbishment and longer on multi-plot or multi-storey schemes, and our waste is bagged and taken away as we go. Jobs in and around smaller places like Farringdon are normally planned as a single visit, so we ask for photos and rough sizes first. That way the right products come on the day.

  1. First we take quantities off the drawings and read through the specification.
  2. You receive a fixed quote listing scope, products and phasing.
  3. Any site paperwork you need (RAMS, insurance certificate, CSCS details) is confirmed with the quote.
  4. Work follows the programme, area by area, as rooms and elevations become ready.
  5. Joints are cleaned, primed where the maker requires it, backed and sealed to the specification.
  6. Snags are cleared before handover and completed areas carry our 12-month guarantee.

Getting the site ready

  • Send any specification or drawings in advance
  • Clear stock, furniture or equipment away from the joints
  • For older buildings, check the asbestos register before work

Quotes

A handful of photographs and a postcode is the fastest way to a quote. Send them through the quote form, or phone 01277 525 020 or send details through our quote form if you’d rather talk the job through.

Get a price

Related advice

Building owners, agents and FMs in Farringdon

Blocks and communal areas make up much of the work for housing associations and agents. We phase the work so people keep access, and each stage is agreed with your contact.

Planned maintenance programmes are welcome: resealing failed joints building by building, on a schedule that suits your budget. Farringdon can form part of a wider programme.

When it isn’t the sealant

Some faults sit outside our scope, and we point that out rather than sealing over them:

  • Designing joint widths or choosing the specification (that sits with the designer)
  • Joints damaged after sign-off by following trades
  • Faulty frames rather than failed sealant

If you are not sure, just ring 01277 525 020 or email drawings and photos and we’ll give you a straight answer before you book.

Joints and surfaces we work on

  • Window and door perimeters
  • Internal decorators’ caulk
  • Cladding and panel joints
  • Sanitary and kitchen joints
  • Floor and skirting junctions
  • Brick and block movement joints
Accreditations

Trusted. Accredited. Insured.