Best Built-in Microwaves Under £300 in 2026
Finding a built-in microwave under £300 means accepting some limitations, but you can still get a reliable appliance that heats food properly and fits a standard cabinet. At this price point in 2026, you're looking at basic models from established brands like Indesit and Hotpoint. These aren't feature-packed machines, but they do the job without the premium price tag.
The key here is managing expectations. You won't get touch controls, steam functions, or app connectivity. What you will get is a workhorse that reheats leftovers, defrosts chicken, and grills cheese on toast. For many households, that's exactly what's needed.
What You Get at This Budget
- Proper grill elements: Every model in this price range includes a grill function, which means you can brown and crisp food, not just heat it through. The grills typically run at 1000W, enough to toast sandwiches or finish off jacket potatoes.
- 20-25 litre capacity: This fits a standard dinner plate with room to spare. A 25-litre cavity lets you microwave a medium casserole dish or a whole chicken for defrosting.
- Stainless steel finish: All three models here come in stainless steel, which matches most modern kitchen appliances and wipes clean easily.
- Manufacturer warranty: You get a standard one-year warranty from Indesit or Hotpoint, plus our 14-day free returns period if the unit arrives and doesn't suit your needs.
What You Sacrifice at This Budget
- Manual dials only: These microwaves use rotary controls, not digital touch panels. Some people prefer the tactile feedback of a dial, others find it old-fashioned. Either way, that's the trade-off at under £300.
- No combination cooking modes: You can microwave or grill, but not both at once in a programmed sequence. If you want to microwave a shepherd's pie then automatically switch to grilling the top, you'll need to do it manually in two stages.
- Basic power levels: You get around five power settings, which is fine for most cooking, but premium models offer finer control with ten or more increments.
Our Top Pick Under £300
The Indesit MWI125GX at £229 gives you the most capacity in this price bracket. That 25-litre cavity makes a real difference when you're heating larger dishes or cooking for a family. The extra five litres over the smaller MWI120GX means a 28cm plate fits comfortably instead of just squeezing in.
The 1000W quartz grill works well for finishing dishes. Quartz elements heat up faster than traditional wire elements and distribute heat more evenly across the top of your food. You can grill bacon, toast bread, or crisp up leftover pizza without firing up the main oven.
This model includes a digital display, which helps you track cooking times more accurately than watching a mechanical timer tick down. It's a small detail, but it matters when you're juggling multiple dishes during dinner prep.
At £229, you're getting the largest capacity, a decent grill, and a reliable brand. Indesit has been making appliances in Europe for decades, and while these aren't fancy models, they're built to last through daily use.
Runner-Up Picks
Hotpoint MF25GIXH at £230: This sits at almost the same price as our top pick, and it's worth considering if you prefer Hotpoint as a brand. The 25-litre capacity matches the Indesit, and the grill function performs similarly. The main difference is the control layout. Some people find Hotpoint's dial arrangement more intuitive, others prefer Indesit's. If possible, look at images of both control panels and see which makes more sense to you. Build quality is comparable between the two brands, they're both owned by the same parent company now.
Indesit MWI120GX at £208: If saving £20 matters more than extra capacity, this 20-litre model does everything the larger version does, just in a smaller space. The grill still runs at 1000W, and the microwave power is the same. You lose five litres of cavity space, which mainly affects how large a dish you can fit inside. A standard 26cm dinner plate fits fine, but a big lasagne dish might be tight. For a couple or someone living alone, this capacity is usually enough. The money you save could go toward better quality storage containers or cookware that fits the space better.
When to Stretch Your Budget
If you regularly cook food from scratch in the microwave rather than just reheating, consider spending £100 to £200 more. Models in the £400 to £500 range add combination cooking, where the microwave and grill run together to speed up cooking times while still browning food. You also get pre-programmed auto-cook menus that adjust power and time based on food weight, which takes the guesswork out of defrosting meat or cooking jacket potatoes. Touch controls and larger cavities, up to 31 litres, appear at this price point too. But if you mainly reheat leftovers, warm up ready meals, and occasionally grill cheese, the extra money won't change your daily experience much.
Hand-Picked, UK-Based Support
All these microwaves come with manufacturer warranty and are in stock now at our Bournemouth warehouse. We're a UK family-owned business with 17 years of experience, and we only stock appliances we'd be happy to fit in our own kitchens. You get 14 days to return any microwave if it doesn't work for your space, and our UK-based support team can answer questions about installation sizes or cooking functions. We don't do gimmicks or invented features, just honest appliances at fair prices.
Shop the Indesit MWI125GX or compare all three models to find the best fit for your kitchen and budget.
This guide was last updated on 25 September 2026. Prices and stock states change daily — check the linked product pages for the current position. Got a question an engineer should answer? Drop us a line.
