Compare and switch
Business ElectricityCompare supplier pricing for your metersBusiness GasFixed and flexible gas contracts explainedBusiness WaterRetailer switching and water cost reviewsBusiness EnergyElectricity and gas managed together
Installations and projects
Business Meter InstallationNew connections, upgrades and smart metersCommercial Solar PanelsRooftop solar for business premisesEnergy BrokersHow brokers work and what we do
Not sure where to start? A comparison covers everything in one go.
Last updated October 2026.
How business gas works in Reading
Somewhere in Reading this morning a hotel kitchen by the station lit its ranges, a warehouse at Theale turned its heaters on and an office block on Thames Valley Park brought its boilers up for the day. All three got their gas through pipes owned by SGN, through its Southern network. None of them pays SGN directly. The network carries the gas, a shipper moves it on the supplier’s behalf, and the supplier sends the bill. The supplier is the part you can compare.
The rules are national. There is no price cap on business gas, no published tariff and no cooling-off period once you have signed. Every quote is built for one meter, from how much it uses and when, the credit profile behind it, the meter type and where wholesale gas is trading on the day.
What is local is the transportation charge. Every Reading supply point, from the town centre to Caversham, Woodley, Tilehurst, Theale and the M4 business parks, sits in SGN’s Southern zone, so the network part of your bill is set on the same regional basis. The differences between two Reading quotes come from the meter, not the postcode.
Reading’s gas demand is mostly heating. The corporate offices along the M4 are large, modern and gas-light per square metre but big in absolute terms; the town-centre hospitality trade burns gas in two daily peaks; the distribution and light-industrial units at Theale and Woodley run seasonal heating loads. A quote that fits one is usually wrong for the other two.
Who runs the pipes in Reading and who sends the bill
SGN owns and maintains the pipes under Reading, runs the gas emergency line and connects new supplies. It is paid through transportation charges your supplier collects within the unit rate and standing charge, under Ofgem price controls. You cannot choose or switch your network. The supplier is the moving part.
Every supply point has an MPRN, the Meter Point Reference Number printed on each bill. That number, not your account number, is what a supplier needs before they can quote. If your Reading site was connected more recently through an independent gas transporter rather than SGN’s network, the MPRN works exactly the same way. Only the pipe owner differs.
Electricity is a separate network with a separate company. In Reading that is Scottish and Southern Electricity Networks. If you buy both fuels, our business electricity in Reading page covers that side, and business energy covers buying the two together.
What goes into a Reading business gas price
Four lines make up the bill. The unit rate does most of the work, the standing charge quietly adds up, and the other two are taxes you can sometimes reduce but never negotiate.
| Part of the bill | What it is | What sets it |
|---|---|---|
| Unit rate | Pence for every kWh of gas used. The largest line on most bills. | Wholesale gas on the day you ask, the regional transportation charges for your zone and the supplier’s margin. |
| Standing charge | A fixed daily fee for the connection, charged whether or not any gas is used. | Meter type and network region. A low unit rate paired with a high standing charge can cost more over a year, so compare the annual total. |
| Climate Change Levy | A government tax on business energy, shown as its own line at 0.801p per kWh from April 2026. | Set nationally. Some manufacturers and charities can claim relief. |
| VAT | 20 percent as standard on business gas. | Drops to 5 percent automatically for very low usage (the de minimis thresholds are 33 kWh a day of electricity or 145 kWh a day of gas), and for charitable non-business or domestic use if you claim it with a VAT declaration. |
After those four, the number that matters most is annual consumption. Under roughly 25,000 kWh you are a small user and suppliers price from a matrix. Above about 150,000 kWh every quote is bespoke. The largest Reading sites, past 500 MWh a year, can buy in tranches on a flexible contract rather than fixing everything on one afternoon.
Compare business gas prices for your Reading meter
Send us a recent bill, or just the MPRN and a rough idea of annual usage, and we will come back with side-by-side pricing from the suppliers on our panel. No obligation, and we tell you plainly if your current deal is the one to keep.
Fixed, variable or flexible for a Reading business
Most small and medium businesses in Reading end up on a fixed rate for one to three years. It is not automatically the safe choice. You are paying for certainty, and if wholesale prices fall halfway through the term you will watch newer contracts come in lower and be able to do nothing about it.
| Contract type | How it prices | Who it tends to suit |
|---|---|---|
| Fixed | Unit rate and standing charge locked for the term, usually one to three years. | Most Reading businesses. Budget certainty, at the cost of a premium and no benefit if wholesale falls. |
| Variable | Tracks the market up and down, normally with a margin on top. | Businesses that can absorb a bad month and want to follow prices down. |
| Flexible | Gas bought in portions across the year rather than fixed in one go. | Sites above about 500 MWh a year, or multi-site groups buying as a portfolio. |
Whatever you sign, write down the termination window. Larger businesses are usually asked for written notice somewhere between 30 and 180 days before the end date. If you are a microbusiness, Ofgem caps the notice a supplier can require at 30 days, and many microbusiness fixed-term contracts need no notice at all. Miss it and you can be moved onto out-of-contract rates, which can run 50 percent or more above a negotiated deal. It is one of the most expensive things that can happen to a business gas account, and one of the easiest to prevent.
Switching business gas supplier in Reading
Nobody comes out. No pipe is touched and the meter stays where it is. Once you sign with a new supplier they arrange the transfer with your old one, the MPRN stays the same, and the only thing that changes is the name on the bill. The transfer itself can go through in as little as five working days. Your existing contract’s notice period is what sets the real timeline.
What a business gas comparison looks like in Reading
A comparison is not a list of unit rates. For a Reading meter we start with the MPRN and twelve months of consumption, then price the same usage across the suppliers on our panel so the figures are like for like. Each quote is shown as an annual cost, with the standing charge, Climate Change Levy and VAT included, because a cheap-looking unit rate attached to a high daily charge is a common way to end up paying more.
We also check three things most renewal letters leave out: whether your meter class matches what you actually use, whether you qualify for reduced VAT or Climate Change Levy relief, and whether the termination terms on the new contract are ones you can live with in three years’ time. If your current supplier’s renewal is the best option, we say so.
Start a comparison or call 020 8036 5715 and we will take it from the bill.
Reading businesses we work with
Reading’s gas users are offices first, then hospitality, then distribution and light industry along the M4 and A33, with a hospital and university estate running heavy seasonal heating. The sector pages go into that detail: business gas for offices, business gas for hospitality, pubs and restaurants, business gas for logistics and warehousing and business gas for manufacturing and industrial sites.
For the national picture start with business gas. If you run more than one site, multi-site business energy management explains how we handle an estate as one portfolio, and what an energy broker does covers how we are paid.
“Clearsight Energy have provided a quick and efficient service to our Parish Council. No pressurised selling was involved, just clear and constructive advice. We will look to using them in the future when our other utility contracts are up for renewal.”
★★★★★ Trustpilot reviews
Frequently asked questions
Who supplies business gas in Reading?
Any licensed UK business gas supplier can take on a Reading meter. The pipes belong to SGN and never change hands. Switching changes the supplier and the price, not the network.
Is Reading in the same gas zone as London?
No. Reading sits in SGN’s Southern network; north London is served by Cadent and south London by SGN. The regional transportation charges differ, which is one reason a Reading quote will not match one for an identical London meter.
Our Thames Valley Park office barely uses gas in summer. Does that matter?
Yes. A strongly seasonal heating load is hedged differently from a flat one and the standing charge becomes a bigger share of the bill. Comparing the annual cost across suppliers matters more than the headline unit rate.
Where is the MPRN on a Reading gas bill?
The Meter Point Reference Number, up to ten digits, is printed on every bill near the meter details. It identifies the supply point rather than your account and is what a supplier needs before quoting. It does not change when you switch.
Can a Reading restaurant switch gas supplier without closing?
Yes. Switching is paperwork between suppliers. The gas keeps flowing through the same pipe and meter and the only change is who bills you.
Does Clearsight Energy cover Wokingham, Bracknell and Newbury?
Yes. All sit in SGN’s Southern network like Reading, and we compare for any mains-connected business meter across Berkshire.
How much notice does a Reading business need to give its current gas supplier?
Check the contract. Most suppliers require written notice between 30 and 180 days before the end date, and some still move smaller customers onto out-of-contract rates if it is missed. Serving notice does not commit you to switching; it keeps the option open.
Can several Reading sites go on one business gas contract?
Usually yes. A multi-site contract brings every MPRN under one supplier, one end date and one set of terms, and larger portfolios can buy on a flexible basis. We compare the estate as a whole rather than site by site.
Does a Reading business need a smart meter to switch gas supplier?
No. Any meter type can be switched. Some suppliers offer to fit a smart or AMR meter after the switch, which is optional for most sites and useful for accurate billing.
What if my Reading premises are on an independent gas transporter?
Only the pipe owner differs. Your MPRN works the same way and any licensed supplier can quote. Some suppliers price IGT sites slightly differently because of the transporter’s charges, which is one more reason to compare several rather than accept the first renewal offer.
How is Clearsight Energy paid for comparing business gas in Reading?
By the supplier you choose, through a commission built into the contract rate. We show the pricing side by side and explain the trade-offs; you decide. How we make our money sets it out in full.
Need help? Get in touch
Call us on 020 8036 5715, or email us. Or start a comparison and we will come back with pricing for your meter.