
Mastic sealant contractors in Hitchin
Mastic sealing for Hitchin, from a contractor working since 2005. Fully insured and CHAS accredited.
- No planned programme for sealant
- Occupiers reporting cold air round windows
- Cracked, hardened mastic round windows on a block
Mastic sealing for businesses in Hitchin
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Mastic sealing in Hitchin
In buildings from before 2000, some old mastics contain asbestos. We check the asbestos register or survey before any old sealant is cut out and if it’s suspected, work stops until it’s tested. Removing asbestos-containing material isn’t something we do. Site teams most often ask us about water getting in round frames after rain and draught complaints from residents or tenants, across balcony and threshold joints, external wall and movement joints and window and door perimeters on blocks. Facilities teams, main contractors and managing agents in Hitchin tend to want the same three things: a clear scope, tidy work and joints that don’t fail again.
Towns the size of Hitchin have a mix of blocks, flats over shops and small commercial buildings looked after by agents and landlords. Window and door perimeters, external joints and communal areas all need their mastic renewed from time to time.
We stand by our work: 12 months, guaranteed. It covers how we prepared and applied the sealant.
- Where
- Hitchin (SG4, SG5)
- Wider area
- Hertfordshire
- Cover
- 12 months on our workmanship
- Quotes
- A fixed quote before we start
- Phone
- 01277 525 020
- Page updated
- 3 November 2026

After the work
To get the most from the new sealant:
- Group repairs into a planned programme
- Check the asbestos register before any old mastic is disturbed
- Check sealant joints during planned building inspections
- Share your contractor requirements early
Where a paintable product was specified, it can be painted after curing. Silicone normally can’t be painted, so keep decorators off it unless told otherwise.
Water getting in round frames can damage plaster, decoration and the frames themselves. Early resealing is far simpler than repairs inside.
Also in Hitchin
FAQs: Hitchin
Do you work for managing agents with blocks near Hitchin station?
Yes. Blocks of any size are within what we do. We work to your notice and access arrangements.
Can work in a care setting near Hitchin go ahead while residents are there?
Yes. We work around residents’ routines, a room or two at a time. We follow the home’s own procedures throughout.
What about access for upper-floor joints?
It depends on the building. We agree access with you at quote stage so the fixed quote reflects it.
Can you follow the specification on our project?
Yes. We follow the specification, along with the manufacturer’s installation guidance, and we raise anything unclear before work begins.
Does weather matter for sealant work?
It can, when the joints are outside. Sealant won’t bond properly to a wet or frosty joint, so we watch the forecast and rearrange outside work if we have to. Internal work is far less affected.
How long does a job like this take?
The duration is planned around your programme and the access we are given. You will have an expected duration with the quote.
Do you cover Hitchin?
Yes. Sites across Hitchin are covered, and the same phone number covers every area.
Looking after buildings in and around Hitchin
At about 32 miles from central London, Hitchin is within reach of the capital. Commuter-belt towns tend to have plenty of managed blocks near stations and town centres. There are two care or nursing homes within about 2 miles of Hitchin. Owners of care premises can bring window and door mastic into a phased programme planned around the home.
Churches, halls and community buildings such as Church of the Holy Saviour are looked after by trustees and committees like any other owner, and their frames, doors and external joints need mastic renewed in time. Site managers at schools like Hitchin Girls' School can fit frame mastic into the summer works.
Hitchin is about 5 miles north-west of Stevenage, in Hertfordshire. Anywhere in SG4, the process is the same: send details, get a fixed quote, we seal, and the work is guaranteed. Hitchin is one of 371 places we cover in Hertfordshire. London is covered too, some 32 miles away.
If you need mastic sealing in SG4 and SG5, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. Buildings on Market Place, London Road and Harrison Close are within our area. Hitchin sits on or close to the A505 and A600. Sites close to Hitchin are covered too, including Benslow (1 mile east), Poets Estate (1 mile east), Bearton (1 mile north-west), Walsworth (1 mile north-east) and Westmill (1 mile north-west). A short drive away, we cover Stevenage (5 miles south-east), St Albans (14 miles south), Welwyn Garden City (11 miles south), Harpenden (10 miles south), Hatfield (13 miles south) and Hertford (13 miles south-east). Hitchin is one of the busier places in Hertfordshire, and we take on mastic joints for its commercial and public buildings.
Local landmarks in Hitchin
Locally, jobs take us to sites close to Highbury Infant School and Nursery, Butts Close and Kingshott School, among other places. Nearby too are Radcliffe Arms (under half a mile north-east) and St Mary's Church (under half a mile south-west). There’s a railway station in Hitchin itself: Hitchin station. Nearby you will also find Wymondley Castle (1.7 miles east) and Lister Hospital (3.1 miles south-east). The countryside around Hitchin includes Purwell Ninesprings and Markham's Hill.
How the quote is worked out
Sealant work doesn’t have a standard rate, because every site is different. What we look at:
- Which sealant the job calls for
- Working within restricted access windows
- Any access equipment needed
- Distance, for remote addresses
Every site prices differently: joint size, product, access and site hours all play a part. Send the details and a fixed figure follows.
Details that help us quote
However big the job, the same details help:
- Clear photos of the problem areas
- The postcode of the building
- Asbestos survey details if the building is older
- Anything awkward about access or site hours
For a fixed quote, call the office on 01277 525 020 or email a schedule or drawings, telling us the site location and the nature of the job. Our quote form is another easy route.
Why act early in Hitchin
Piecemeal repairs over the years often leave mismatched sealant. A block-wide reseal gives one product, one colour and one guarantee and one 12-month guarantee. In a town such as Hitchin, a lot of buildings are older and have been altered over time, and joints where old meets new tend to fail first. Resealing them early protects the building behind.
Small jobs and large programmes are priced from the same things: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote, and you will have a fixed figure to work with.
Why choose Mastic Doctor in Hitchin
- Fixed quotes based on photos, drawings or a visit
- One contact handling all your sites
- 12-month guarantee on workmanship
- Standard and matched colours in many product ranges
Take a look at our cost guide or our accreditations.
For managing agents and facilities managers
We take on planned maintenance as well as one-off repairs: resealing failed joints building by building, on a schedule that suits your budget. Sites in Hitchin can sit alongside others in a wider programme.
Facilities managers want contractors who arrive with the paperwork sorted. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we’ll confirm with the quote.
What we’re called out for in Hitchin
Sunlight and weather break mastic down over time. The surface chalks, the body stiffens and cracks appear most of all on the sunniest and most exposed elevations.
Look out for the following:
- Window mastic that has split and shrunk
- Communal area joints that look neglected
- Draughts at frames across a block
- Open joints in brickwork or panels
Blocks of flats and mixed-use buildings often cluster around stations such as Hitchin station, less than half a mile to the north-east of Hitchin, and their window and balcony mastic tends to age at the same rate across a building.
Comparing quotes
- Is depth set with backing rod, or bond-breaker tape in shallow joints?
- Health and safety accreditation such as CHAS
- Whether their applicators hold CSCS cards
- How they handle RAMS and site documents
On site: what to expect
We begin with a short walk round with whoever looks after the building, to confirm the scope, the order of work and any areas we must keep clear. Then we strip out anything that has failed, prepare every joint and seal it. Town-centre premises in Hitchin may have limited parking, so tell us what’s nearby. Industrial and business units typically have yard or car park space.
- We inspect each building and record the joints that have failed.
- The quote is fixed and split as suits you.
- Dates and areas are agreed so occupiers can be told.
- Old mastic is removed and the joint faces prepared.
- Joints are resealed and tooled.
- We check the finished work and confirm the guarantee.
What we need from you
- Move anything stored against the joints
- Tell us what induction or permit system the site runs
- Tell us which areas need to stay in use
Quotes
Pricing a project or setting a maintenance budget? Send the scope and any drawings, and we will return a fixed quote you can plan around. For a chat about it beforehand, ring 01277 525 020 or send photos by email.