EXTREME UPVC WINDOWS

“Extreme” is the most fitting word to describe the industry leading replacement UPVC windows offered by TWC.
GET A FREE QUOTE

Our Extreme window range delivers extreme performance in every respect, particularly when it comes to thermal efficiency and security, and they can even outperform standard A-rated windows, considered by many to be the best window option on the market.

Huge breakthroughs have been made by our engineers and designers to ensure the extreme range expertly retains internal warmth and subsequently reduces the resilience householders have on their heating systems. If you’re currently living with older and draughty windows, you’ll be astounded at the difference our replacement windows will make to your home.

Extreme UPVC Windows

Extreme UPVC windows are also intelligent enough to draw in the heat of the sun like a magnetic force, helping you to reduce your energy bills. Join the growing number of Wiltshire and Oxfordshire homeowners opting for extreme window quality.

In addition to their high-quality performance, there is no exaggeration on our part when we say that we have hundreds of shades, textures and wood effects you can pick from.

Grey Extreme UPVC Windows
Extreme UPVC Windows

OUR POPULAR UPVC WINDOWS

Many of our most popular window designs are available in UPVC, including our casement windows, tilt & turn windows, sliding sash windows and bay & bow windows.

Cream UPVC Cottage Windows

CASEMENT WINDOWS

Our casement windows are a timeless classic. Combined with the most classic of the materials, UPVC, they truly are a window design for the ages.

VIEW OUR RANGE
UPVC Tilt & Turn Windows

TILT & TURN WINDOWS

Nothing beats a UPVC tilt & turn window for versatility. With flexible wide openings, they allow you to get the perfect amount of ventilation into your Wiltshire or Oxfordshire home.

VIEW OUR RANGE
UPVC Sash Windows

SLIDING SASH WINDOWS

We have brought the traditional style of the sliding sash window to the 21st Century by manufacturing the design from UPVC.

VIEW OUR RANGE
Do your windows have EXTREME protection?

Security must never be overlooked - TWC prioritises it when manufacturing our windows. Our EXTREME range is security-focused, with no less than 11 visible locking points being present within our window designs, making them 3 times more secure than most windows.

  • EXTREME enhanced security with centre VAULTBOLT and multi cam locking technology.
  • EXTREME enhanced durability with UNIQUE superglide gearbox ensures smooth operation.
  • EXTREME enhanced COMPRESSION and acoustics with interlocking hinge bolts and optimum weatherseals.
Casement Windows

Herculean Hinge

These heavy duty and highly engineered hinges offer increased load bearing. Featuring anti-crowbar technology, they promise a lifetime of performance.

Extreme Locking

With up to 9 locking points and two high compression hinge bolts, you get 360-degree solidity. Upgrade to Secured by Design if you want the lock to meet the Police-approved standard and be further assured of safety.

Extreme Frame

An EXTREME frame is made up of a total of 14 chambers (combined sash and frame) to deliver exceptional thermal performance. This also makes it twist and age-resistant, stopping your windows from ever losing their appearance.

Extreme Weather Seal

Get twice the standard coverage thanks to high elasticity and dual density. Defence against the elements and excess noise comes courtesy of long-lasting airtight protection.

Ultimate Glass

Our next generation glass, with its ultra-clear outer pane and super soft coat inner pane, will give you the best in energy efficiency and the most spectacular view.

Extreme Handles

The robustness of an EXTREME handle is unrivalled and the handles can be finished in a colour that suits your windows most.
Make your energy costs so much cheaper...

The worldwide energy crisis is hitting homeowners the hardest and it makes it crucial that your property is energy efficient. It will be once you have your old windows removed and exchanged for our EXTREME UPVC windows.

Far less heat will escape from the place and you won’t feel the draughts that previously filled it. They will make it warmer and at the same time, let you reduce your energy usage.

White UPVC Windows
Oak Envisage Flush Windows
White UPVC Windows

PERSONALISE YOUR WINDOWS

Once you know the window style that you want, it needs to be customised for your home. This involves selecting a suitable colour, glazing and hardware so that they’re in character with the building.

A definitive suite of glazing options, including privacy glazing...

We don’t have to point out how integral glass is to the overall window design. Your choice of glass should be dictated by what you want it to actually do – if it’s a reduction in energy costs you seek, our high performance next generation glass is probably your best option. Speak to our team to select a glass type that meets your objectives.

Handles crafted with care…

When you look at and touch our traditional and contemporary handles, you gain an appreciation for how much time and effort has been put into making them by our craftspeople.

You can trust the locking system in the handles to stop your windows being forced open when locked.

REQUEST YOUR FREE QUOTE

Simply fill in your details for your free, no obligation quotation, and click "Get Quote"

Your details
What would you like a quote for?
Content Block
  • This field is for validation purposes and should be left unchanged.

NEED MORE INSPIRATION? REQUEST A BROCHURE

Simply select the brochure(s) you would like to browse, fill in your details, and then click ‘Download’.

Step 2 - Your details:
  • Hidden
  • This field is for validation purposes and should be left unchanged.

OUR FINANCE CALCULATOR

See how affordable your home improvement can be with our Finance Calculator.
  • PAY MONTHLY FINANCE Buy now and choose to pay monthly over 60, 120 or 154 months...
  • BUY NOW PAY IN 12 MONTHS Buy now and pay nothing more for 12 months - with no interest...
£
60 monthly payments
Deposit
£
Representative APR over 5 years
12.4%
120 monthly payments
Deposit
£
Representative APR over 10 years
12.4%
154 monthly payments
Deposit
£
Representative APR over 12 years
12.4%
This finance option allows you the convenience and flexibility of spreading the cost of your home improvements over 60, 120 or 154 months*. You must make the minimum repayment each month. However you can also make additional payments and therefore control the length of the loan and the amount of interest you would pay. No security is required on these loans. These calculators are for illustrative purposes only and do not constitute a credit quotation. *120 & 154 months finance only available for orders over £8,000.

Representative Example

Cash Price
£10,000.00
Deposit
£1,000.00
Total Amount of Credit
£9,000.00
Duration of Agreement
60 months
Rate of Interest
12.4% p.a. fixed
Representative APR
12.4% APR
60 Monthly Payments
£199.06
Total Amount Payable
£12,943.60
£
Deposit
£
Pay within 12 months
£
Want to pay in monthly instalments after 12 months rather than one-off payment? Consider this option.
120 monthly payments
Deposit
£
Representative APR over 10 years
19.9%
Pay 10% deposit when you order, and as long as you pay the outstanding balance in full before 12 months has elapsed plus a £29 exit fee, no interest will be charged. If, after 12 months, this is not convenient, you can pay in 120 monthly installments at 19.9% APR Representative. *Deferred for 12 months from the date of completion – £29 exit fee applies if the loan is repaid in full during the deferral period and NO INTEREST will be paid. If the loan is not settled in full within the deferral period, then interest will have accrued from the start of the agreement on any amount still outstanding at the end of the deferral period. Interest will continue to be charged until the agreement is repaid in full. For legal reasons the Representative Example shows interest IF the outstanding balance is NOT paid before the 12 months has elapsed. No security is required on this loan. These calculators are for illustrative purposes only and do not constitute a credit quotation.

Representative Example

Cash Price
£10,000.00
Deposit
£1,000.00
Total Amount of Credit
£9,000.00
Defer By
12 Months
Duration of Agreement
132 Months*
Rate of Interest
19.9% p.a. fixed
Representative APR
19.9% APR
120 Monthly Payments
£193.50
Total Amount Payable
£24,220.00
Settlement Fee
£29.00

Want to speak with an Advisor? Give us a call on 01793 781413

Our friendly team will be pleased to help with any questions you may have.

VISIT A TWC SHOWROOM

Everyone is welcome to come in and browse around our Swindon or Oxford showroom, where our friendly sales team will be pleased to help with any questions you may have.

VIEW SHOWOOM LOCATIONS