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Blue living room with white 3 part casement window with white sills and surrounds

Are double glazed windows expensive?


Have you been considering new double glazed windows? A common worry is how expensive it will be to replace your existing windows. Our article will outline the features and benefits of choosing Lorimer windows for your home. It will also help explain the cost, highlighting that investing in new double glazing can suit all budgets. 

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How much do new windows cost?

Several factors need to be considered when quoting a new installation; size, materials, number of windows and style of frame. CR Smith offers four main types of window; casement, tilt and turn, reversible and sliding sash uPVC window styles.

We do not show average prices on our website because all our windows are bespoke and made to fit your specific requirements. We offer over 50 styles of double glazed windows, and there is no ‘standard’ size that fits all. 

To provide you with an accurate quote we ask that you book a free design appointment. This is an opportunity for you to see our products, talk about window styles and finishes, and choose payment options that fit your needs perfectly.

You can choose to meet us virtually online, or in the comfort of your own home.

Living room bay window with white upvc sliding sash windows
After photo of a white casement window with royal oak sills in a kitchen

Is double glazing a good investment?

Absolutely, replacing your windows is one of the smartest ways to invest in your home. Energy-efficient windows are a must, especially in Scotland. 

ESPC and Zoopla published articles on improving your home’s value. They suggest enhancing kerb appeal and making your home more energy efficient. Both of these can be solved by upgrading your windows. 

Our energy-efficient, ‘A’ rated Lorimer windows can not only improve your home’s thermal performance but also enhance its aesthetic appearance.

This dual benefit makes your home more attractive and can increase its market value.

Between 2006-07, the peak year of residential sales, and 2022-23, the average price of a home in Scotland increased by 55%, demonstrating that improving your home is always a worthwhile investment.

Furthermore, Energy Performance Certificates (EPCs) are a requirement for every property on the market.

Lorimer windows will not only make your home energy efficient, and wind and watertight, but most importantly comfortable, safe and secure for your family. New modern double glazed windows will give your EPC rating a significant boost, should you ever consider selling your home in the future. And even better the CR Smith guarantee is fully transferable to the new homeowner.

Internal view of white uPVC, double-glazed kitchen windows. Complete with Royal Oak sill and surroundings.

Why choose CR Smith?

CR Smith has been a household name in Scotland for over fifty years. The Lorimer range of double glazed windows and doors has been specifically designed for Scottish homes and the  Scottish climate. The majority of our products are produced in our state-of-the-art manufacturing facility in Fife, made for Scotland. 

CR Smith runs an apprenticeship programme in partnership with Fife College to help develop the next generation of Scottish tradespeople. Our training scheme ensures that our tradespeople, who are directly employed by us, are fully qualified and expertly trained to meet our exacting standards.

We employ over 350 people across Scotland, with bases in Glasgow, Inverness, Aberdeen, and Dunfermline, providing outstanding double glazing windows services across Scotland. The skills and experience of our workforce is unparalleled, a quarter of whom have worked with us for 20 years or longer.

The benefits of CR Smith windows

The appeal of Lorimer windows extends beyond their initial price. Distinctive in design, look and build. Featuring unique slim-line frames, the elegant and well-proportioned Lorimer window allows natural light to flood into your home. 

We offer a fully custom service. Encompassing window styling, thermal efficiency, security, internal finishes and decoration. Providing a fully project managed installation that you can enjoy with the peace of mind that you have the unparalleled CR Smith triple 10-year guarantee behind you and a dedicated customer service team.

Window styles

There is a range of stunning uPVC double glazed window styles to choose from; casement windows, tilt and turn windows, reversible windows and sliding sash windows. All our products are truly bespoke and made to measure.

Window colours

It’s important to choose the right colour of windows, both inside and outside, to complement the aesthetics and period of your home. Choose from American light oak, white, rosewood and anthracite grey.

Decorative glazing finishes for windows 

With our own in-house design team, we can truly personalise your windows to suit your individual taste, with features such as stained glass, diamond and square leading, brilliant-cut and sandblasted glass and ornate astragals.

‘A’ Energy rated double glazing 

Lorimer windows are manufactured to be compliant with Building Regulations (Scotland) and are A energy rated as standard. Thermal efficiency savings will offset this initial investment over time. The recent Window of Opportunity study by British Glass and the Glazing Federation reports that new windows can save up to £395 a year off energy bills.

The Energy Saving Trust backs this up. Switching to Energy A-rated windows and doors could cut down your carbon footprint by a whopping 410kg.

CR Smith also specialises in secondary glazing, so you can add double-glazed protection for houses with planning restrictions, such as listed buildings and those within conservation areas. Historic Scotland suggests that adding secondary glazing is one of the most cost-effective ways to improve thermal performance.


All Lorimer products are manufactured to the highest standards and exceed the requirements of both Scottish building regulations. Our full product range is independently tested and achieves British Standards Kitemarks and further accreditation, such as:

  • PAS 24 enhanced security performance of windows for domestic applications
  • Secured by design. A police initiative that improves the security of buildings through design and seeks to achieve sustainable reductions in crime.

Internal finishing and decoration

Beyond energy efficiency and security, upgrading to Lorimer windows provides the added advantage of improved aesthetics. We believe the way your new windows are styled and finished should be considered more than any other aspect because it sets the tone for the interior design of every room. 

The price of our Lorimer window includes the option to be fitted with an American timber or engineered wood sill and surround to complement your room. Most other companies provide standard PVC trims which is not the ideal material to use for bedrooms or living rooms, and should really only be specified in bathrooms.

You have the choice of royal oak, natural ash, American cherry and engineered wood, finished in brilliant white. Every sill and surround is hand-finished in your choice of wax, varnish, or paint by our professional decorators.

We’ll oversee every last detail to make sure your home gets the high-quality craftsmanship it deserves.

50 years of window and door guarantees honoured

All Lorimer windows and doors are covered by our unique ‘Triple Guarantee’.

We have been in business continuously for the past 50 years, giving you the confidence to know that we will be available to take care of you and your home when you require our assistance the most.

  • Lorimer 10-year product and installation guarantee. Our no-quibble guarantee is in its 5th generation.
  • Lorimer 10-year emergency call-out service. We’re available 24/7, 365 days a year, so we’ll always be there when you need us most.
  • Lorimer 10-year security guarantee. We will replace any window or door, free of charge, should someone gain entry.
  • Lorimer Building Regulations certificate. We meet the exacting standards of Building Regulations (Scotland) for all windows and doors at the time of installation.
  • Fire safety standards. When replacing your windows and doors, we will always make sure they comply with the latest standards for fire escapes as detailed in the Building Regulations (Scotland).

The CR Smith guarantee is fully transferable, should you decide to move home in the future, the remaining guarantee period will transfer to the new homeowners. CR Smith is often quoted in property listings about this feature.

Living room with three part bay window. Casement windows with royal oak sills.

What are the payment options?

We want everyone to get the very best for their home and enjoy the unrivalled benefits of Lorimer home improvements. Investing in your house is a wise decision, as installing new windows and doors will enhance your home’s energy efficiency. New windows and doors will also significantly alter the appearance and ambience of your home. 

As a credit broker, the payment packages we offer through our finance partners, are better than most banks and other home improvement loan providers. It gives us the flexibility to offer a range of options, so you can tailor your proposed home improvements to suit your budget.

We want our customers to get the best from their home improvements and enjoy the benefits new windows and doors can bring – particularly to the warmth and comfort of their homes.

Watch our Head of Sales Operations, Gill Buchanan, explain the options in our video below.

Key features of our home improvement finance

  • Unlike other loan providers, we don’t make any money by offering finance. It’s purely a tool to help you pay for our products. As a result, our rates are better than most banks and building societies.
  • Everyone gets the advertised APR once you are approved for the loan. They are not ‘headline rates’.
  • All our payment rates are fixed for the full term of the loan. You’ll stay ahead of interest rates rises and know exactly how much your monthly repayments are.
  • Depending on how much you want to borrow, you can choose a range of loan repayment periods, between 2 – 8 years. Allowing you to spread the cost of your home improvements.
  • Our finance packages are flexible, so you can make overpayments during the loan period to reduce the overall term.
  • Apply online. It can be done in the comfort of your own home during the design consultation.
  • Use our loan calculator to estimate the monthly cost of your new windows.

Our current finance packages

Buy now, Pay later

  • Nothing to pay for 12 months. Only 3.9% APR representative. Terms from 2 to 5 years.
  • Nothing to pay for 12 months. Only 2.9% APR representative. 7, 8 and 9 year repayment terms available to offer your excellent ways to spread any payments at very low interest rates.

Interest free credit

  • 0% Interest free credit. Spread the cost of your windows with interest free finance over 2 years with no deposit.
  • Reduce your monthly payments with a longer interest free period. Choose from 2.5 years, 3 years or 4 years. Deposits apply.

Updated November 2023

No matter which finance package you choose or if you choose to pay the windows outright, we don’t ask for a deposit up frount.

Additionally, our well-received ‘Flexible Fit’ discount and seasonal offers provide further avenues for enjoying excellent value on new Lorimer windows and doors.

When comparing our buy now pay later finance package, our flat rate of 1.57% over 8 years, is less than half of the Bank of England base rate – 5.25% as of 25th August 2023. And could well be one of the cheapest methods of financing home improvements.

But don’t just take our word for it…

We’re consistently rated excellent on Trustpilot, with a rating of 4.9 out of 5, and in 2020 CR Smith topped a members’ poll of best double-glazing companies in the UK, with 98% of our customers saying they’d recommend us.

A recent survey of our last 2000 customers revealed that our customers rated our sales team 9.5 out of 10 for their professional approach to styling and presenting our products for their homes.

Here are some examples from our last 100 Trustpilot reviews and why you should consider CR Smith for your replacement double glazing.

“I cannot praise these guys enough and we are absolutely delighted with the service and professionalism throughout.” 

“I am over the moon with my new windows! … I’m so happy I chose CR Smith. 

The quality of the product and the installation from start to finish has been brilliant. Not to mention the peace of mind with their guarantee. Thanks to the whole team!”

“From the beginning to the end of the process everything was carried out with professionalism and care”

“wisely advised by David who did genuinely want to give me the best product and choice for my needs”

“Good time keeping, daily schedule explained, and installation carried our expertly. Good job.”

“I would have absolute confidence in recommending CR Smith based on my dealings with this Company.”

No one offers you more than CR Smith

What’s included with CR Smith? 

The differenceCR SmithStandard
Over 50 years continually improving
Manufacturing in Scotland, for Scottish homes
Fully qualified & expertly trained joiners
10-year product and installation guarantee
10-year security guarantee
Emergency call out service
Building regulations certificate
Fully transferable guarantee package
Unique slim window frame to maximise light
Professional decoration service
Choice of interior hardwood timber finishes
Nothing to pay deferred payment period12 months5 months
Average APR representative2.9% APR12.65% APR*
*Sourced online. Accurate 06/23.

So, when you’re weighing up the window replacement cost, think of it as more than just a price tag. It’s an investment in your home’s future value and your present comfort. After all, who wouldn’t want a home that’s as cosy as it is cost-effective?

When you choose CR Smith, you’re not just picking a window manufacturer. We’re all about offering you more—more choice, more confidence, more expertise, more care, more delight, and more peace of mind.

Here are our top 3 factors in ensuring you choose the best double glazing for your home;

  1. Getting the correct window style designed for your home and finished beautifully to the interior.
  2. Extensive guarantees are in place to look after your home’s new windows and doors for the next ten years.
  3. Expert window and door installation, to ensure the best performance and look of the window, while taking care of your home in the process. All our joiners are time served and trained to the Lorimer fit standard, they are not simply window fitters – they are highly skilled craftsmen passionate about the standard of their finished work.

We’ve been in business for over 50 years, and that’s not just a number; it’s a testament to our craft and the trust our customers place in us.

We offer a range of industry-leading finance options, so we can tailor the double glazing cost to suit your budget. When you invest in CR Smith windows, you’re making a better investment in your home—one that pays off in increased property value and lower energy bills.

Speak to us today to arrange a home or online design appointment for your free quotation. We’ll make sure that with us, you’re not just buying windows; you’re investing in a better quality of life.

Credit is subject to status and affordability. CR Smith Glaziers (Dunfermline) Limited acts as a credit broker, not a lender, and is authorised and regulated by the Financial Conduct Authority. The credit advertised is provided by a panel of lenders with whom we have a commercial relationship (so we cannot provide independent advice).

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