# Black Diamond Plumbing \& Mechanical: Plumbing, Electric and HVAC Services

> Black Diamond Plumbing \& Mechanical provides 24/7 plumbing, HVAC, and electrical services across Chicagoland for lasting home comfort\.

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## Pages
- [Join Our Team](https://blackdiamondtoday.com/jobs/)
- [Specials](https://blackdiamondtoday.com/specials/)
- [Plumbing, HVAC \& Electrical Services in Chicagoland](https://blackdiamondtoday.com/services/)
- [Black Diamond History](https://blackdiamondtoday.com/history/)
- [About Us](https://blackdiamondtoday.com/about-us/)

## Posts
- [Why Do My Lights Keep Flickering?](https://blackdiamondtoday.com/blog/why-do-my-lights-keep-flickering/)
- [Four Outdoor Electrical Safety Tips to Follow This Summer](https://blackdiamondtoday.com/blog/four-outdoor-electrical-safety-tips-to-follow-this-summer/): During the hot summer months, you're typically using more electricity than you may initially realize\. Between summer thunderstorms, more outdoor activities, running additional appliances, and maintaining pool equipment, your home's electrical system may experience extra strain throughout the season\. 

- [Three Signs Your HVAC System is Oversized or Undersized](https://blackdiamondtoday.com/blog/three-signs-your-hvac-system-is-oversized-or-undersized/): Did you know the size of your HVAC unit matters? When it comes to sizing, your system’s heating and cooling capacity matters more than the physical dimensions of your furnace or air conditioner\. 

Having an oversized or undersized unit can lead to a variety of common heating and cooling issues such as short\-cycling and inconsistent heating and cooling\. Over time, you may notice that the size of the unit can also affect your home’s comfort, energy usage, and overall performance\. 
- [How Does Hard Water Affect Your Plumbing System?](https://blackdiamondtoday.com/blog/how-does-hard-water-affect-your-plumbing-system/): If you’ve ever noticed white spots or streaks on glassware you’ve pulled out of the dishwasher, you may have issues with hard water\. The white, chalky residue you find around your showerheads or faucets is another common sign and is actually caused by mineral buildup in the water\. 
- [How Can I Tell if I Have a Hidden Plumbing Leak?](https://blackdiamondtoday.com/blog/how-can-i-tell-if-i-have-a-hidden-plumbing-leak/)

## Affiliations
- [bbb](https://blackdiamondtoday.com/blog/bc_affiliations/auto-draft-3/)
- [Nadca](https://blackdiamondtoday.com/blog/bc_affiliations/auto-draft-2/)

## Promotions
- [$150 Off Any Sump Pump, Battery Backup Pump, or Ejector](https://blackdiamondtoday.com/blog/promotions/auto-draft-3/)
- [$30 Off a Service Call](https://blackdiamondtoday.com/blog/promotions/auto-draft/)
- [10% Senior Discount](https://blackdiamondtoday.com/blog/promotions/auto-draft-2/)
- [ $30 Off Air Conditioner Tune\-Up](https://blackdiamondtoday.com/blog/promotions/30-off-ac-tune-up/)

## Testimonials
- [B\.  Nyquist](https://blackdiamondtoday.com/blog/bc_testimonials/auto-draft-4/)
- [V\. Royal](https://blackdiamondtoday.com/blog/bc_testimonials/auto-draft-3/)
- [Charles Horn](https://blackdiamondtoday.com/blog/bc_testimonials/auto-draft-24/)
- [Patrick](https://blackdiamondtoday.com/blog/bc_testimonials/auto-draft-23/)
- [Wendy](https://blackdiamondtoday.com/blog/bc_testimonials/auto-draft-22/)

## Categories
- [Uncategorized](https://blackdiamondtoday.com/blog/category/uncategorized/)
- [HVAC](https://blackdiamondtoday.com/blog/category/hvac/)
- [Plumbing](https://blackdiamondtoday.com/blog/category/plumbing/)
- [Electric](https://blackdiamondtoday.com/blog/category/electric/)
- [Heating](https://blackdiamondtoday.com/blog/category/heating/)

## Tags
- [HVAC](https://blackdiamondtoday.com/blog/tag/hvac/)
- [Plumbing](https://blackdiamondtoday.com/blog/tag/plumbing/)
- [HVAC Maintenance](https://blackdiamondtoday.com/blog/tag/hvac-maintenance/)
- [HVAC Service](https://blackdiamondtoday.com/blog/tag/hvac-service/)
- [Plumbing Service](https://blackdiamondtoday.com/blog/tag/plumbing-service/)

## Optional
- [Sitemap index](https://blackdiamondtoday.com/sitemap_index.xml)